Function format

src/CPstrings.cpp:33–51

#if defined(NO_FMTLIB)
std::string format(const char* fmt, ...) {
    const int size = 512;
    struct deleter
    {
        static void delarray(char* p) {
            delete[] p;
        }
    };  // to use delete[]
    shared_ptr<char> buffer(new char[size], deleter::delarray);  // I'd prefer unique_ptr, but it's only available since c++11
    va_list vl;
    va_start(vl, fmt);
    int nsize = vsnprintf(buffer.get(), size, fmt, vl);
    if (size <= nsize) {                                     //fail delete buffer and try again
        buffer.reset(new char[++nsize], deleter::delarray);  //+1 for /0
        nsize = vsnprintf(buffer.get(), nsize, fmt, vl);
    }
    va_end(vl);
    return buffer.get();
}
#endif

#if defined(ENABLE_CATCH)