* create stdext namespace which contains additional C++ algorithms * organize stdext in string, math, cast and exception utilitiesmaster
Eduardo Bart
12 years ago
parent
2676eb4da3
commit
4c80d783d6
@ -1,12 +1,34 @@
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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
|
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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* copies of the Software, and to permit persons to whom the Software is
|
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef NETWORKEXCEPTION_H
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#define NETWORKEXCEPTION_H
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#include "declarations.h"
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class NetworkException : public Exception
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class NetworkException : public stdext::exception
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{
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public:
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NetworkException(const std::string& what) : Exception(what) { }
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NetworkException(const std::string& what) : stdext::exception(what) { }
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};
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#endif
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@ -0,0 +1,121 @@
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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
|
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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* copies of the Software, and to permit persons to whom the Software is
|
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef STDEXT_CAST_H
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#define STDEXT_CAST_H
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#include "string.h"
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#include "exception.h"
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#include "demangle.h"
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namespace stdext {
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// cast a type to another type
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template<typename T, typename R>
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bool cast(const T& in, R& out) {
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std::stringstream ss;
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ss << in;
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ss >> out;
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return !!ss && ss.eof();
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}
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// cast a type to string
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template<typename T>
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bool cast(const T& in, std::string& out) {
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std::stringstream ss;
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ss << in;
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out = ss.str();
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return true;
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}
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// cast string to string
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template<>
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inline bool cast(const std::string& in, std::string& out) {
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out = in;
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return true;
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}
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// special cast from string to boolean
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template<>
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inline bool cast(const std::string& in, bool& b) {
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static std::string validNames[2][4] = {{"true","yes","on","1"}, {"false","no","off","0"}};
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bool ret = false;
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for(int i=0;i<4;++i) {
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if(in == validNames[0][i]) {
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b = true;
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ret = true;
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break;
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} else if(in == validNames[1][i]) {
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b = false;
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ret = true;
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break;
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}
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}
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return ret;
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}
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// special cast from boolean to string
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template<>
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inline bool cast(const bool& in, std::string& out) {
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out = (in ? "true" : "false");
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return true;
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}
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// used by safe_cast
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class cast_exception : public exception {
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public:
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virtual ~cast_exception() throw() { }
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template<class T, class R>
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void update_what() {
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m_what = format("failed to cast value of type '%s' to type '%s'", demangle_type<T>(), demangle_type<R>());
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}
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virtual const char* what() { return m_what.c_str(); }
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private:
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std::string m_what;
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};
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// cast a type to another type, any error throws a cast_exception
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template<typename R, typename T>
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R safe_cast(const T& t) {
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R r;
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if(!cast(t, r)) {
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cast_exception e;
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e.update_what<T,R>();
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throw e;
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}
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return r;
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}
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// cast a type to another type, cast errors are ignored
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template<typename R, typename T>
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R unsafe_cast(const T& t, R def = R()) {
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try {
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return safe_cast<R,T>(t);
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} catch(cast_exception& e) {
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std::cout << "CAST ERROR: " << e.what() << std::endl;
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return def;
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}
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}
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}
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#endif
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@ -0,0 +1,57 @@
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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef STDEXT_DUMPER_H
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#define STDEXT_DUMPER_H
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#include <iostream>
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namespace stdext {
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namespace dumper {
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struct dumper_dummy {
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~dumper_dummy() { std::cout << std::endl; }
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template<class T>
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dumper_dummy& operator<<(const T& v) {
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std::cout << v << " ";
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return *this;
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}
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};
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struct dumper_util {
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dumper_util() { }
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template<class T>
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dumper_dummy operator<<(const T& v) const {
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dumper_dummy d;
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d << v;
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return d;
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}
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};
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}
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const static dumper::dumper_util dump;
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}
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#endif
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@ -0,0 +1,89 @@
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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef STDEXT_MATH_H
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#define STDEXT_MATH_H
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#include "types.h"
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#include <random>
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namespace stdext {
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inline uint32 generate_adler_checksum(uint8 *buffer, uint16 size) {
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register uint32 a = 1, b = 0, tlen;
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while(size > 0) {
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tlen = size > 5552 ? 5552 : size;
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size -= tlen;
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do {
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a += *buffer++;
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b += a;
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} while (--tlen);
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a %= 65521;
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b %= 65521;
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}
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return (b << 16) | a;
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}
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inline bool is_power_of_two(uint32 v) {
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return ((v != 0) && !(v & (v - 1)));
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}
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inline uint32 to_power_of_two(uint32 v) {
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if(v == 0)
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return 0;
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uint32 r = 1;
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while(r < v && r != 0xffffffff)
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r <<= 1;
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return r;
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}
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inline uint16 readLE16(uchar *addr) { return (uint16)addr[1] << 8 | addr[0]; }
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inline uint32 readLE32(uchar *addr) { return (uint32)readLE16(addr + 2) << 16 | readLE16(addr); }
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inline uint64 readLE64(uchar *addr) { return (uint64)readLE32(addr + 4) << 32 | readLE32(addr); }
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inline void writeLE16(uchar *addr, uint16 value) { addr[1] = value >> 8; addr[0] = (uint8)value; }
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inline void writeLE32(uchar *addr, uint32 value) { writeLE16(addr + 2, value >> 16); writeLE16(addr, (uint16)value); }
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inline void writeLE64(uchar *addr, uint64 value) { writeLE16(addr + 4, value >> 32); writeLE32(addr, (uint32)value); }
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template<typename T>
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T random_range(T min, T max);
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template<>
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inline int random_range<int>(int min, int max) {
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static std::random_device rd;
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static std::mt19937 gen(rd());
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static std::uniform_int_distribution<int> dis(0, 2147483647);
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return min + (dis(gen) % (max - min + 1));
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}
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template<>
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inline float random_range<float>(float min, float max) {
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static std::random_device rd;
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static std::mt19937 gen(rd());
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static std::uniform_real_distribution<float> dis(0.0, 1.0);
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return min + (max - min)*dis(gen);
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}
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}
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#endif
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@ -0,0 +1,235 @@
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/*
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* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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* copies of the Software, and to permit persons to whom the Software is
|
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* furnished to do so, subject to the following conditions:
|
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*
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* The above copyright notice and this permission notice shall be included in
|
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* all copies or substantial portions of the Software.
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||||
*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef STDEXT_STRING_H
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#define STDEXT_STRING_H
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#include <string>
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#include <cstring>
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#include <iostream>
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#include <sstream>
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#include <iomanip>
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#include <vector>
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#include <boost/algorithm/string.hpp>
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#include "types.h"
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#include "cast.h"
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#include "exception.h"
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namespace stdext {
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// casts declaration, definition will be included at the end of the file
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template<typename R, typename T> R safe_cast(const T& t);
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template<typename R, typename T> R unsafe_cast(const T& t, R def = R());
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/// Convert any type to std::string
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template<typename T>
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std::string to_string(const T& t) { return unsafe_cast<std::string, T>(t); }
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/// Convert any type from std::string
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template<typename T>
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T from_string(const std::string& str, T def = T()) { return unsafe_cast<T, std::string>(str, def); }
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/// Cast non-class types like int, char, float, double and pointers
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template<typename T>
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typename std::enable_if<std::is_integral<T>::value || std::is_pointer<T>::value || std::is_floating_point<T>::value, T>::type sprintf_cast(const T& t) { return t; }
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/// Cast any class or struct convertible to std::string
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inline const char *sprintf_cast(const std::string& s) { return s.c_str(); }
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template<int N>
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struct expand_snprintf{
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template<typename Tuple, typename... Args>
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static int call(char *s, size_t maxlen, const char *format, const Tuple& tuple, const Args&... args) {
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return expand_snprintf<N-1>::call(s, maxlen, format, tuple, sprintf_cast(std::get<N-1>(tuple)), args...);
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}
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};
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template<>
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struct expand_snprintf<0> {
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template<typename Tuple, typename... Args>
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static int call(char *s, size_t maxlen, const char *format, const Tuple& tuple, const Args&... args) {
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return snprintf(s, maxlen, format, args...);
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}
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};
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template<class T>
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struct replace_extent { typedef T type; };
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template<class T>
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struct replace_extent<T[]> { typedef const T* type; };
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template<class T, std::size_t N>
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struct replace_extent<T[N]> { typedef const T* type;};
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/// Improved sprintf that accepts std::string and other types
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template<typename... Args>
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int snprintf(char *s, size_t maxlen, const char *format, const Args&... args) {
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typedef typename std::tuple<typename replace_extent<Args>::type...> Tuple;
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enum { N = std::tuple_size<Tuple>::value };
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Tuple tuple(args...);
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return expand_snprintf<N>::call(s, maxlen, format, tuple);
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}
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/// Format strings with the sprintf style, accepting std::string and string convertible types for %s
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template<typename... Args>
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std::string format(const std::string& format, const Args&... args) {
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int n, size = 1024;
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std::string str;
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while(true) {
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str.resize(size);
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n = snprintf(&str[0], size, format.c_str(), args...);
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assert(n != -1);
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if(n < size) {
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str.resize(n);
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return str;
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}
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size *= 2;
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}
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}
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inline void fill_ostream(std::ostringstream&) { }
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/// Fills an ostream by concatenating args
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template<class T, class... Args>
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void fill_ostream(std::ostringstream& stream, const T& first, const Args&... rest) {
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stream << first;
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fill_ostream(stream, rest...);
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}
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/// Makes a std::string by concatenating args
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template<class... T>
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std::string mkstr(const T&... args) {
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std::ostringstream buf;
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fill_ostream(buf, args...);
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return buf.str();
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}
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/// Easy of use split
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template<typename T = std::string>
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std::vector<T> split(const std::string& str, const std::string& separators = " ") {
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std::vector<std::string> splitted;
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boost::split(splitted, str, boost::is_any_of(std::string(separators)));
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std::vector<T> results(splitted.size());
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for(uint i=0;i<splitted.size();++i)
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results[i] = safe_cast<T>(splitted[i]);
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return results;
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}
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/// Resolve a file path by combining sourcePath with filePath
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inline std::string resolve_path(const std::string& filePath, std::string sourcePath) {
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if(boost::starts_with(filePath, "/"))
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return filePath;
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if(!boost::ends_with(sourcePath, "/")) {
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std::size_t slashPos = sourcePath.find_last_of("/");
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if(slashPos == std::string::npos)
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throw_exception(format("invalid source path '%s', for file '%s'", sourcePath, filePath));
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sourcePath = sourcePath.substr(0, slashPos + 1);
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}
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return sourcePath + filePath;
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}
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/// Get current date and time in a std::string
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inline std::string date_time_string() {
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char date[32];
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std::time_t tnow;
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std::time(&tnow);
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std::tm *ts = std::localtime(&tnow);
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std::strftime(date, 32, "%b %d %Y %H:%M:%S", ts);
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return std::string(date);
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}
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/// Convert decimal to hexadecimal
|
||||
inline std::string dec_to_hex(unsigned int num) {
|
||||
std::string str;
|
||||
std::ostringstream o;
|
||||
o << std::hex << num;
|
||||
str = o.str();
|
||||
return str;
|
||||
}
|
||||
|
||||
/// Convert hexadecimal to decimal
|
||||
inline unsigned int hex_to_dec(const std::string& str) {
|
||||
unsigned int num;
|
||||
std::istringstream i(str);
|
||||
i >> std::hex >> num;
|
||||
return num;
|
||||
}
|
||||
|
||||
/// Convert ip to string
|
||||
inline std::string ip_to_string(uint32 ip) {
|
||||
char host[16];
|
||||
sprintf(host, "%d.%d.%d.%d", (uint8)ip, (uint8)(ip >> 8), (uint8)(ip >> 16), (uint8)(ip >> 24));
|
||||
return std::string(host);
|
||||
}
|
||||
|
||||
/// Convert utf8 characters to latin1
|
||||
inline char utf8CharToLatin1(uchar *utf8, int *read) {
|
||||
char c = '?';
|
||||
uchar opt1 = utf8[0];
|
||||
*read = 1;
|
||||
if(opt1 == 0xc3) {
|
||||
*read = 2;
|
||||
uchar opt2 = utf8[1];
|
||||
c = 64 + opt2;
|
||||
} else if(opt1 == 0xc2) {
|
||||
*read = 2;
|
||||
uchar opt2 = utf8[1];
|
||||
if(opt2 > 0xa1 && opt2 < 0xbb)
|
||||
c = opt2;
|
||||
} else if(opt1 < 0xc2) {
|
||||
c = opt1;
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
||||
/// Convert utf8 strings to latin1
|
||||
inline std::string utf8StringToLatin1(uchar *utf8) {
|
||||
std::string out;
|
||||
int len = strlen((char*)utf8);
|
||||
for(int i=0; i<len;) {
|
||||
int read = 0;
|
||||
uchar *utf8char = &utf8[i];
|
||||
out += utf8CharToLatin1(utf8char, &read);
|
||||
i += read;
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
// utility for printing messages into stdout
|
||||
template<class... T>
|
||||
void print(const T&... args) {
|
||||
std::ostringstream buf;
|
||||
fill_ostream(buf, args...);
|
||||
std::cout << buf.str();
|
||||
}
|
||||
|
||||
template<class... T>
|
||||
void println(const T&... args) {
|
||||
print(args...);
|
||||
std::cout << std::endl;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#include "cast.h"
|
||||
|
||||
#endif
|
||||
@ -0,0 +1,37 @@
|
||||
/*
|
||||
* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef BOOLEAN_H
|
||||
#define BOOLEAN_H
|
||||
|
||||
/// Boolean with default value
|
||||
template<bool def>
|
||||
struct Boolean {
|
||||
Boolean() : v(def) { }
|
||||
operator bool &() { return v; }
|
||||
operator bool const &() const { return v; }
|
||||
bool& operator=(const bool& o) { v = o; return v; }
|
||||
private:
|
||||
bool v;
|
||||
};
|
||||
|
||||
#endif
|
||||
@ -1,350 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef TOOLS_H
|
||||
#define TOOLS_H
|
||||
|
||||
#include <cstdlib>
|
||||
#include <iostream>
|
||||
#include <iomanip>
|
||||
#include <string>
|
||||
#include <sstream>
|
||||
#include <exception>
|
||||
#include <cxxabi.h>
|
||||
#include <vector>
|
||||
#include <boost/algorithm/string.hpp>
|
||||
#include "types.h"
|
||||
#include "exception.h"
|
||||
|
||||
namespace Fw {
|
||||
|
||||
// read utilities for istream
|
||||
inline uint8 getU8(std::istream& in) {
|
||||
uint8 tmp;
|
||||
in.read((char*)&tmp, 1);
|
||||
return tmp;
|
||||
}
|
||||
|
||||
inline uint16 getU16(std::istream& in) {
|
||||
uint16 tmp;
|
||||
in.read((char*)&tmp, 2);
|
||||
return tmp;
|
||||
}
|
||||
|
||||
inline uint32 getU32(std::istream& in) {
|
||||
uint32 tmp;
|
||||
in.read((char*)&tmp, 4);
|
||||
return tmp;
|
||||
}
|
||||
|
||||
inline uint16 readLE16(uchar *addr) { return (uint16)addr[1] << 8 | addr[0]; }
|
||||
inline uint32 readLE32(uchar *addr) { return (uint32)readLE16(addr + 2) << 16 | readLE16(addr); }
|
||||
inline uint64 readLE64(uchar *addr) { return (uint64)readLE32(addr + 4) << 32 | readLE32(addr); }
|
||||
|
||||
inline void writeLE16(uchar *addr, uint16 value) { addr[1] = value >> 8; addr[0] = (uint8)value; }
|
||||
inline void writeLE32(uchar *addr, uint32 value) { writeLE16(addr + 2, value >> 16); writeLE16(addr, (uint16)value); }
|
||||
inline void writeLE64(uchar *addr, uint64 value) { writeLE16(addr + 4, value >> 32); writeLE32(addr, (uint32)value); }
|
||||
|
||||
// fills an ostream by concatenating args
|
||||
inline void fillOstream(std::ostringstream&) { }
|
||||
template<class T, class... Args>
|
||||
void fillOstream(std::ostringstream& stream, const T& first, const Args&... rest) {
|
||||
stream << first;
|
||||
fillOstream(stream, rest...);
|
||||
}
|
||||
|
||||
// makes a std::string by concatenating args
|
||||
template<class... T>
|
||||
std::string mkstr(const T&... args) {
|
||||
std::ostringstream buf;
|
||||
fillOstream(buf, args...);
|
||||
return buf.str();
|
||||
}
|
||||
|
||||
// throw a generic expcetion
|
||||
template<typename... T>
|
||||
void throwException(const T&... args) {
|
||||
throw Exception(mkstr(args...));
|
||||
}
|
||||
|
||||
// used by dumper
|
||||
struct dump_util {
|
||||
~dump_util() { std::cout << std::endl; }
|
||||
template<class T>
|
||||
dump_util& operator<<(const T& v) {
|
||||
std::cout << v << " ";
|
||||
return *this;
|
||||
}
|
||||
};
|
||||
|
||||
// utility for dumping variables
|
||||
struct dumper {
|
||||
dumper() { }
|
||||
template<class T>
|
||||
dump_util operator<<(const T& v) const {
|
||||
dump_util d;
|
||||
d << v;
|
||||
return d;
|
||||
}
|
||||
};
|
||||
|
||||
// utility for printing messages into stdout
|
||||
template<class... T>
|
||||
void print(const T&... args) {
|
||||
std::ostringstream buf;
|
||||
fillOstream(buf, args...);
|
||||
std::cout << buf.str();
|
||||
}
|
||||
|
||||
template<class... T>
|
||||
void println(const T&... args) {
|
||||
print(args...);
|
||||
std::cout << std::endl;
|
||||
}
|
||||
|
||||
// useful std::string version of sprintf :)
|
||||
template<typename... Args>
|
||||
std::string formatString(const std::string& format, Args... args) {
|
||||
int n, size = 1024;
|
||||
std::string str;
|
||||
while(true) {
|
||||
str.resize(size);
|
||||
n = snprintf(&str[0], size, format.c_str(), args...);
|
||||
assert(n != -1);
|
||||
if(n < size) {
|
||||
str.resize(n);
|
||||
return str;
|
||||
}
|
||||
size *= 2;
|
||||
}
|
||||
}
|
||||
|
||||
// demangle names for GNU g++ compiler
|
||||
inline std::string demangleName(const char* name) {
|
||||
size_t len;
|
||||
int status;
|
||||
std::string ret;
|
||||
char* demangled = abi::__cxa_demangle(name, 0, &len, &status);
|
||||
if(demangled) {
|
||||
ret = demangled;
|
||||
free(demangled);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
// returns the name of a type
|
||||
template<typename T>
|
||||
std::string demangleType() {
|
||||
return demangleName(typeid(T).name());
|
||||
}
|
||||
|
||||
// cast a type to another type
|
||||
template<typename T, typename R>
|
||||
bool cast(const T& in, R& out) {
|
||||
std::stringstream ss;
|
||||
ss << in;
|
||||
ss >> out;
|
||||
return !!ss && ss.eof();
|
||||
}
|
||||
|
||||
// cast a type to string
|
||||
template<typename T>
|
||||
bool cast(const T& in, std::string& out) {
|
||||
std::stringstream ss;
|
||||
ss << in;
|
||||
out = ss.str();
|
||||
return true;
|
||||
}
|
||||
|
||||
// cast string to string
|
||||
template<>
|
||||
inline bool cast(const std::string& in, std::string& out) {
|
||||
out = in;
|
||||
return true;
|
||||
}
|
||||
|
||||
// special cast from string to boolean
|
||||
template<>
|
||||
inline bool cast(const std::string& in, bool& b) {
|
||||
static std::string validNames[2][4] = {{"true","yes","on","1"}, {"false","no","off","0"}};
|
||||
bool ret = false;
|
||||
for(int i=0;i<4;++i) {
|
||||
if(in == validNames[0][i]) {
|
||||
b = true;
|
||||
ret = true;
|
||||
break;
|
||||
} else if(in == validNames[1][i]) {
|
||||
b = false;
|
||||
ret = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
// special cast from boolean to string
|
||||
template<>
|
||||
inline bool cast(const bool& in, std::string& out) {
|
||||
out = (in ? "true" : "false");
|
||||
return true;
|
||||
}
|
||||
|
||||
// used by safe_cast
|
||||
class cast_exception : public Exception {
|
||||
public:
|
||||
virtual ~cast_exception() throw() { }
|
||||
template<class T, class R>
|
||||
void setWhat() {
|
||||
m_what = mkstr("failed to cast value of type '", demangleType<T>(),
|
||||
"' to type '", demangleType<R>(), "'");
|
||||
}
|
||||
virtual const char* what() { return m_what.c_str(); }
|
||||
private:
|
||||
std::string m_what;
|
||||
};
|
||||
|
||||
// cast a type to another type, any error throws a cast_exception
|
||||
template<typename R, typename T>
|
||||
R safeCast(const T& t) {
|
||||
R r;
|
||||
if(!cast(t, r)) {
|
||||
cast_exception e;
|
||||
e.setWhat<T,R>();
|
||||
throw e;
|
||||
}
|
||||
return r;
|
||||
}
|
||||
|
||||
// cast a type to another type, cast errors are ignored
|
||||
template<typename R, typename T>
|
||||
R unsafeCast(const T& t, R def = R()) {
|
||||
try {
|
||||
return safeCast<R,T>(t);
|
||||
} catch(cast_exception& e) {
|
||||
println("CAST ERROR: ", e.what());
|
||||
return def;
|
||||
}
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
std::string tostring(const T& t) {
|
||||
return unsafeCast<std::string, T>(t);
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
T fromstring(const std::string& str, T def = T()) {
|
||||
return unsafeCast<T, std::string>(str, def);
|
||||
}
|
||||
|
||||
inline std::string dec2hex(unsigned int num) {
|
||||
std::string str;
|
||||
std::ostringstream o;
|
||||
o << std::hex << num;
|
||||
str = o.str();
|
||||
return str;
|
||||
}
|
||||
|
||||
inline unsigned int hex2dec(const std::string& str) {
|
||||
unsigned int num;
|
||||
std::istringstream i(str);
|
||||
i >> std::hex >> num;
|
||||
return num;
|
||||
}
|
||||
|
||||
inline std::string ip2str(uint32 ip) {
|
||||
char host[16];
|
||||
sprintf(host, "%d.%d.%d.%d", (uint8)ip, (uint8)(ip >> 8), (uint8)(ip >> 16), (uint8)(ip >> 24));
|
||||
return std::string(host);
|
||||
}
|
||||
|
||||
template<typename T = std::string>
|
||||
std::vector<T> split(const std::string& str, const std::string& separators = " ") {
|
||||
std::vector<std::string> splitted;
|
||||
boost::split(splitted, str, boost::is_any_of(std::string(separators)));
|
||||
std::vector<T> results(splitted.size());
|
||||
for(uint i=0;i<splitted.size();++i)
|
||||
results[i] = safeCast<T>(splitted[i]);
|
||||
return results;
|
||||
}
|
||||
|
||||
inline std::string resolvePath(const std::string& file, std::string sourcePath) {
|
||||
if(boost::starts_with(file, "/"))
|
||||
return file;
|
||||
if(!boost::ends_with(sourcePath, "/")) {
|
||||
std::size_t slashPos = sourcePath.find_last_of("/");
|
||||
if(slashPos == std::string::npos)
|
||||
throwException("invalid source path '", sourcePath, "' for file '", file, "'");
|
||||
sourcePath = sourcePath.substr(0, slashPos + 1);
|
||||
}
|
||||
return sourcePath + file;
|
||||
}
|
||||
|
||||
inline std::string dateTimeString() {
|
||||
char date[32];
|
||||
std::time_t tnow;
|
||||
std::time(&tnow);
|
||||
std::tm *ts = std::localtime(&tnow);
|
||||
std::strftime(date, 32, "%b %d %Y %H:%M:%S", ts);
|
||||
return std::string(date);
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
T randomRange(T min, T max);
|
||||
|
||||
template<>
|
||||
inline int randomRange<int>(int min, int max) {
|
||||
static std::random_device rd;
|
||||
static std::mt19937 gen(rd());
|
||||
static std::uniform_int_distribution<int> dis(0, 2147483647);
|
||||
return min + (dis(gen) % (max - min + 1));
|
||||
}
|
||||
|
||||
template<>
|
||||
inline float randomRange<float>(float min, float max) {
|
||||
static std::random_device rd;
|
||||
static std::mt19937 gen(rd());
|
||||
static std::uniform_real_distribution<float> dis(0.0, 1.0);
|
||||
return min + (max - min)*dis(gen);
|
||||
}
|
||||
|
||||
inline uint32 getAdlerChecksum(uint8* buffer, uint16 size) {
|
||||
register uint32 a = 1, b = 0, tlen;
|
||||
while(size > 0) {
|
||||
tlen = size > 5552 ? 5552 : size;
|
||||
size -= tlen;
|
||||
do {
|
||||
a += *buffer++;
|
||||
b += a;
|
||||
} while (--tlen);
|
||||
|
||||
a %= 65521;
|
||||
b %= 65521;
|
||||
}
|
||||
return (b << 16) | a;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
// shortcut for Fw::dump
|
||||
const static Fw::dumper dump;
|
||||
|
||||
#endif
|
||||
Loading…
Reference in new issue