format.h

Go to the documentation of this file.

 
#pragma once
#include <cstdarg>
#include <regex>
#include <sstream>
#include <string>
#include <vector>
 
inline std::string format(const char* fmt, ...) {
  int size     = 512;
  char* buffer = 0;
  buffer       = new char[size];
  va_list vl;
  va_start(vl, fmt);
  int nsize = vsnprintf(buffer, size, fmt, vl);
  std::string ret(buffer);
  if(size <= nsize) { //fail delete buffer and try again
    delete[] buffer;
    buffer = 0;
    buffer = new char[nsize - size + 2]; //+1 for /0
    nsize  = vsnprintf(buffer, (nsize - size) + 2, &fmt[size], vl);
    ret += buffer;
  }
  va_end(vl);
  delete[] buffer;
  return ret;
}
 
std::string strip(const std::string& in);
 
template<typename Out>
void split(const std::string& s, char delim, Out result);
 
 
std::vector<std::string> split(const std::string& s, char delim);
 
template<typename Out>
void split(const std::string& s, Out result);
 
 
std::vector<std::string> split(const std::string& s);
 
std::vector<std::string> split_by_regex(const std::string& s, const std::regex& regex);