cutil.cpp File Reference

#include "cutil.h"
#include "tprintf.h"
#include "callcpp.h"
#include <stdlib.h>

Go to the source code of this file.

Macros
#define	RESET_COUNT   2000

Functions
long	long_rand (long limit)
FILE *	open_file (const char *filename, const char *mode)
bool	exists_file (const char *filename)
	Check whether the file exists. More...

Macro Definition Documentation

#define RESET_COUNT   2000

Definition at line 47 of file cutil.cpp.

Function Documentation

bool exists_file

(

const char *

filename

)

Check whether the file exists.

Definition at line 92 of file cutil.cpp.

                                       {
  bool exists = false;
  FILE *f = NULL;
  if ((f = fopen(filename, "rb")) != NULL) {
    fclose(f);
    exists = true;
  }
  return exists;
}

long long_rand

(

long

limit

)

Definition at line 56 of file cutil.cpp.

                           {
#if RAND_MAX < 0x1000000
  static long seed;

  long num;
  num = (long) rand () << 16;
  num |= rand () & 0xffff;
  seed ^= num;
  long result = num % limit;
  while (result < 0) {
    result += limit;
  }
  return result;
#else
  return (long)((double)limit * rand()/(RAND_MAX + 1.0));
#endif
}

FILE* open_file	(	const char *	filename,
		const char *	mode
	)

Definition at line 82 of file cutil.cpp.

                                                        {
  FILE *thisfile = NULL;
  if ((thisfile = fopen (filename, mode)) == NULL) {
    tprintf ("Could not open file, %s\n", filename);
    exit (1);
  }
  return (thisfile);
}