Function format

core/base/UTF8.cpp:42–49

ifndef AX_CORE_PROFILE

{
//#ifndef AX_CORE_PROFILE
std::string AX_DLL format(const char* format, ...)
{
    va_list args;
    va_start(args, format);
    auto ret = vformat(format, args);
    va_end(args);
    return ret;
}
/*--- This a C++ universal sprintf in the future.
**  @pitfall: The behavior of vsnprintf between VS2013 and VS2015/2017 is different
**      VS2013 or Unix-Like System will return -1 when buffer not enough, but VS2015/2017 will return the actural needed