source: cpp/gdk/nonstd.h @ 81

//Define rnd01, rnd0N, and randomN so that they
//work in your C++ environment.
//Some other functions/macros may also be needed if they
//are missing in your environment, like min, max, etc.

#ifndef __NONSTD_H
#define __NONSTD_H

#define APPLICATION_NAME "Framsticks"
#define MAIN_FRAMSTICKS
#define SAFEDELETE(p) {if (p) {delete p; p=NULL;}}
#define SAFEDELETEARRAY(p) {if (p) {delete[] p; p=NULL;}}

//#ifndef _Windows   included below?
//#include <stdlib.h>
//#endif

#define DB(x) //output debug info. If needed, use #define DB(x) x
//#define DB(x) x

// ms visual c++
#ifdef _MSC_VER
 #define WIN32_LEAN_AND_MEAN     // Exclude rarely-used stuff from Windows headers
 #include <windows.h>
 #include <stdio.h>
 #include <stdarg.h>
 #define vsnprintf _vsnprintf
 #define _USE_MATH_DEFINES //after this is defined, the next #include <math.h> or <cmath> will define:
 //#ifndef M_PI
 //#define M_PI 3.1415926535897932384626433832795
 //#endif
 //#ifndef M_PI_2
 //#define M_PI_2 (M_PI/2)
 //#endif

#endif

/////////////////////////////////////////////////////// 64-bit int type and other macros
#ifdef _Windows
        typedef __int64 LONGLONG;
        #define PATHSEPARATORCHAR '\\'
        #define PATHSEPARATORSTRING "\\"
        #define FPU_THROWS_EXCEPTIONS
        #define FOPEN_READ "rt"
        #define FOPEN_WRITE "wt"
        #define FOPEN_APPEND "at"
#else
        #define LONGLONG long long int
        #define PATHSEPARATORCHAR '/'
        #define PATHSEPARATORSTRING "/" 
        #define FOPEN_READ "r"
        #define FOPEN_WRITE "w"
        #define FOPEN_APPEND "a"
#endif

#ifdef __BORLANDC__
        #define fileExists(f) (!access(f,0))
        #include "stdlib.h" //random
        #define rnd01 ((double)((double)_lrand()/(double)(LRAND_MAX+1)))
        //#define rnd01 ((double)((double)rand()/(RAND_MAX+1)))
        #define rnd0N(num) ((double)((num)*rnd01))
        #define randomN(num) random(num) //uses _lrand
#else
        #ifdef _MSC_VER
        #define fileExists(f) (!access(f,0))
        #else
        #define fileExists(f) (!access(f,R_OK))
        #endif

        //#define FLOATRAND
        #ifdef FLOATRAND
                #define randomN(x) ((int)((x)*drand48()))
                #define rnd01 (drand48())
                #define rnd0N(x) (drand48()*(x))
        #else
                #define rnd01 ((double)(rand()/(RAND_MAX+1.0)))
                #define rnd0N(x) ((x)*rnd01)
                #define randomN(x) ((int)rnd0N(x))
        #endif
#endif


#ifdef __GNUC__
/*
        #define min(a,b) (((a)>(b))?(b):(a))
        #define max(a,b) (((a)>(b))?(a):(b))
        #define abs(a) ((a)>=0?(a):-(a))
*/
#include <algorithm>
using namespace std;
#endif

#ifdef DEFINE_STRICMP_AS_STRCASECMP
#define stricmp(a,b) strcasecmp(a,b)
#endif

#endif