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common.h File Reference

common algorithms, constants and functions. More...

#include "nel/misc/types_nl.h"
#include <ctype.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <math.h>
#include <algorithm>
#include <string>
#include <vector>
#include <sstream>
#include <unistd.h>
#include <sys/types.h>

Go to the source code of this file.

Namespaces

namespace  NLMISC

Defines

#define NLMISC_CONVERT_VARGS(_dest, _format, _size)
 This macro converts variable arguments into C string (zero terminated string). More...

#define new   NL_NEW

Detailed Description

common algorithms, constants and functions.

Id:
common.h,v 1.51 2002/11/15 16:54:18 lecroart Exp

Definition in file common.h.

Define Documentation

#define new   NL_NEW
 

#define NLMISC_CONVERT_VARGS (  _dest,
_format,
_size    ) 
 

Value:

char _cstring[_size]; \
va_list _args; \
va_start (_args, _format); \
int _res = vsnprintf (_cstring, _size-1, _format, _args); \
if (_res == -1 || _res == _size-1) \
{ \
        _cstring[_size-1] = '\0'; \
} \
va_end (_args); \
_dest = _cstring
This macro converts variable arguments into C string (zero terminated string).

This function takes care to avoid buffer overflow.

Example: 

        void MyFunction(const char *format, ...)
        {
                string str;
                NLMISC_CONVERT_VARGS (str, format, NLMISC::MaxCStringSize);
                // str contains the result of the conversion
        }
 *
Parameters:
_dest  string or char* that contains the result of the convertion
_format  format of the string, it must be the last argument before the '...' \param _size size of the buffer that will contain the C string

Definition at line 94 of file common.h.

Referenced by NLMISC::CLog::display, NLMISC::CLog::displayNL, NLMISC::CLog::displayRaw, NLMISC::CLog::displayRawNL, NLMISC::Exception::Exception, NLMISC::CLog::forceDisplayRaw, NL3D::CTextContextUser::printfAt, NL3D::CTextContext::printfAt, NL3D::CTextContextUser::render3D, NL3D::CTextContextUser::textPush, and NL3D::CTextContext::textPush.