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https://github.com/tesseract-ocr/tesseract.git
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fa0f86f70a
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@53 d0cd1f9f-072b-0410-8dd7-cf729c803f20
93 lines
3.0 KiB
C++
93 lines
3.0 KiB
C++
/* -*-C-*-
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********************************************************************************
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*
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* File: cutil.c
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* Description: General utility functions
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* Author: Mark Seaman, SW Productivity
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* Created: Fri Oct 16 14:37:00 1987
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* Modified: Wed Jun 6 16:29:17 1990 (Mark Seaman) marks@hpgrlt
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* Language: C
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* Package: N/A
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* Status: Reusable Software Component
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*
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* (c) Copyright 1987, Hewlett-Packard Company.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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********************************************************************************
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Revision 1.1 2007/02/02 23:39:07 theraysmith
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Fixed portability issues
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Revision 1.1.1.1 2004/02/20 19:39:06 slumos
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Import original HP distribution
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* Revision 1.3 90/03/06 15:39:10 15:39:10 marks (Mark Seaman)
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* Look for correct file of <malloc.h> or <stdlib.h>
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*
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* Revision 1.2 90/01/15 13:02:13 13:02:13 marks (Mark Seaman)
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* Added memory allocator (*allocate) and (*deallocate)
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*
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* Revision 1.1 89/10/09 14:58:29 14:58:29 marks (Mark Seaman)
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* Initial revision
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**/
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#include "cutil.h"
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#include "tprintf.h"
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#include "callcpp.h"
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#include <stdlib.h>
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#define RESET_COUNT 2000
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void_proc deallocate = (void_proc) c_free_string;
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char_proc allocate = (char_proc) c_alloc_string;
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/**********************************************************************
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* long_rand
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*
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* Return a long random number whose value is less than limit. Do this
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* by calling the standard cheepo random number generator and reseting
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* it pretty often.
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**********************************************************************/
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long long_rand(long limit) {
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#if RAND_MAX < 0x1000000
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static long seed;
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long num;
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num = (long) rand () << 16;
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num |= rand () & 0xffff;
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seed ^= num;
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long result = num % limit;
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while (result < 0) {
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result += limit;
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}
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return result;
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#else
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return (long)((double)limit * rand()/(RAND_MAX + 1.0));
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#endif
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}
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/**********************************************************************
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* open_file
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*
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* Open a file for reading or writing. If the file name parameter is
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* NULL use stdin (or stdout) for the file. If the file can not be
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* opened then call the error routine.
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**********************************************************************/
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FILE *open_file(const char *filename, const char *mode) {
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FILE *thisfile = NULL;
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if ((thisfile = fopen (filename, mode)) == NULL) {
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tprintf ("Could not open file, %s\n", filename);
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exit (1);
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}
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return (thisfile);
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}
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