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Fixes in stdext::format

This commit is contained in:
Eduardo Bart 2013-11-11 23:04:51 -02:00
parent 1868b235cb
commit 0938e22eb9
1 changed files with 16 additions and 3 deletions
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19
src/framework/stdext/format.h
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@ -40,7 +40,7 @@ template<class T, class... Args>
void print_ostream(std::ostringstream& stream, const T& first, const Args&... rest) { stream << "\t" << first; print_ostream(stream, rest...); }
template<class... T>
/// Utility for printing variables just like lua
// Utility for printing variables just like lua
void print(const T&... args) { std::ostringstream buf; print_ostream(buf, args...); std::cout << buf.str() << std::endl; }
template<typename T>
@ -58,14 +58,27 @@ template<> struct expand_snprintf<0> {
template<typename Tuple, typename... Args> static int call(char *s, size_t maxlen, const char *format, const Tuple& tuple, const Args&... args) {
return snprintf(s, maxlen, format, args...); }};
/// Improved snprintf that accepts std::string and other types
// Improved snprintf that accepts std::string and other types
template<typename... Args>
int snprintf(char *s, size_t maxlen, const char *format, const Args&... args) {
std::tuple<typename replace_extent<Args>::type...> tuple(args...);
return expand_snprintf<std::tuple_size<decltype(tuple)>::value>::call(s, maxlen, format, tuple);
}
/// Format strings with the sprintf style, accepting std::string and string convertible types for %s
template<typename... Args>
inline int snprintf(char *s, size_t maxlen, const char *format) {
std::strncpy(s, format, maxlen);
s[maxlen-1] = 0;
return strlen(s);
}
template<typename... Args>
inline std::string format() { return std::string(); }
template<typename... Args>
inline std::string format(const std::string& format) { return format; }
// Format strings with the sprintf style, accepting std::string and string convertible types for %s
template<typename... Args>
std::string format(const std::string& format, const Args&... args) {
int n, size = 1024;