CommonStl.cpp

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#include "stdafx.h"
#include "CommonStl.h"
#include <stdio.h>

// --------------------------- string

void vFormat(std::string &s, const char *format, va_list args)
{
        const int maxsize = 1024;

        s.resize(maxsize);
        int len = _vsnprintf(&s[0], maxsize-1, format, args);
        ASSERT( len <= maxsize-1 );

        if( len < 0 )
        {
                ASSERT(false);  // output was truncated
                len = maxsize-1;
        }

        s.resize(len);
}

void vFormat(std::wstring &s, const wchar_t *format, va_list args)
{
        const int maxsize = 1024;

        s.resize(maxsize);
        int len = _vsnwprintf(&s[0], maxsize-1, format, args);
        ASSERT( len <= maxsize-1 );

        if( len < 0 )
        {
                ASSERT(false);  // output was truncated
                len = maxsize-1;
        }

        s.resize(len);
}