[gameprogrammer] Re: How to assign a numeric variable to an std::string?

[Kevin Jenkins <gameprogrammer@rakkar.org>]

I ended up doing this, which is more flexible:

std::string query;
query+=FormatString("%i", 5);

// FormatString.cpp

#include "FormatString.h"
#include <stdio.h>
#include <string.h>
#include <stdarg.h>

#if defined(__GNUC__)
#define _vsnprintf vsnprintf
#endif

char * FormatString(const char *format, ...)
{
	static int textIndex=0;
	static char text[4][8096];
	va_list ap;
	va_start(ap, format);
	if (++textIndex==4)
		textIndex=0;
	_vsnprintf(text[textIndex], 8096, format, ap);
	va_end(ap);
	text[textIndex][8096-1]=0;

	return text[textIndex];
}



Brian wrote:
> On Jan 11, 2008 9:36 PM, Kevin Jenkins <gameprogrammer@rakkar.org> wrote:
> > float f=5;
> > std::string myStr;
> > myStr << f;
>
>
> Use std::stringstream, or a wrapper thereof such as boost::lexical_cast.
>
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