290 lines
8.4 KiB
C
290 lines
8.4 KiB
C
/****************************************************************************
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*
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* Open Watcom Project
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*
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* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*
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* ========================================================================
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*
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* This file contains Original Code and/or Modifications of Original
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* Code as defined in and that are subject to the Sybase Open Watcom
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* Public License version 1.0 (the 'License'). You may not use this file
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* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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* provided with the Original Code and Modifications, and is also
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* available at www.sybase.com/developer/opensource.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
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* NON-INFRINGEMENT. Please see the License for the specific language
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* governing rights and limitations under the License.
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*
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* ========================================================================
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*
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* Description: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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* DESCRIBE IT HERE!
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*
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****************************************************************************/
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/*
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* MEMTEST.C
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* Non-exhaustive test of the C library memory manipulation functions.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if defined(__386__) || defined(M_I86)
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#include <i86.h>
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#endif
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#ifdef __SW_BW
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#include <wdefwin.h>
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#endif
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#define VERIFY( exp ) if( !(exp) ) { \
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printf( "%s: ***FAILURE*** at line %d of %s.\n",\
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ProgramName, __LINE__, \
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strlwr(__FILE__) ); \
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NumErrors++; \
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exit(-1); \
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}
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void TestCompare( void );
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void TestCompareF( void );
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void TestCopy( void );
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void TestCopyF( void );
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void TestOverlap( void );
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void TestOverlapF( void );
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void TestMisc( void );
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char ProgramName[128]; /* executable filename */
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int NumErrors = 0; /* number of errors */
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/****
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***** Program entry point.
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****/
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int main( int argc, char *argv[] )
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{
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#ifdef __SW_BW
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FILE *my_stdout;
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my_stdout = freopen( "tmp.log", "a", stdout );
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if( my_stdout == NULL ) {
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fprintf( stderr, "Unable to redirect stdout\n" );
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exit( -1 );
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}
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#endif
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/*** Initialize ***/
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strcpy( ProgramName, strlwr(argv[0]) ); /* store filename */
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/*** Test various functions ***/
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TestCompare(); /* comparing stuff */
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TestCopy(); /* copying stuff */
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TestOverlap(); /* test overlapping copy */
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TestMisc(); /* other stuff */
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#if defined(__386__) || defined(M_I86)
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TestCompareF();
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TestCopyF();
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TestOverlapF();
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#endif
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/*** Print a pass/fail message and quit ***/
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if( NumErrors!=0 ) {
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printf( "%s: SUCCESS.\n", ProgramName );
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return( EXIT_SUCCESS );
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}
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printf( "Tests completed (%s).\n", strlwr( argv[0] ) );
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#ifdef __SW_BW
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{
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fprintf( stderr, "Tests completed (%s).\n", strlwr( argv[0] ) );
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fclose( my_stdout );
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_dwShutDown();
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}
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#endif
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return( 0 );
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}
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/****
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***** Test memcmp(), memicmp(), and memchr().
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****/
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void TestCompare( void )
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{
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char buf[80];
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char * ptr;
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int status;
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strcpy( buf, "Foo !" ); /* initialize string */
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status = memcmp( buf, "Foo", 3 ); /* compare */
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VERIFY( status == 0 );
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status = memcmp( buf, "Foo!", 4 ); /* compare */
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VERIFY( status != 0 );
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status = memicmp( buf, "FOO", 3 ); /* compare */
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VERIFY( status == 0 );
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status = memicmp( buf, "fOo!", 4 ); /* compare */
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VERIFY( status != 0 );
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ptr = memchr( buf, '~', 6 ); /* try to find a tilde */
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VERIFY( ptr == NULL );
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ptr = memchr( buf, '!', 6 ); /* find the '!' */
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VERIFY( ptr == buf+4 );
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}
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#if defined(__386__) || defined(M_I86)
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void TestCompareF( void )
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{
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char buf[80];
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char __far * ptr;
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int status;
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strcpy( buf, "Foo !" ); /* initialize string */
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status = _fmemcmp( buf, "Foo", 3 ); /* compare */
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VERIFY( status == 0 );
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status = _fmemcmp( buf, "Foo!", 4 ); /* compare */
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VERIFY( status != 0 );
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ptr = _fmemchr( buf, '~', 6 ); /* try to find a tilde */
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VERIFY( ptr == NULL );
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ptr = _fmemchr( buf, '!', 6 ); /* find the '!' */
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VERIFY( ptr == buf+4 );
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}
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#endif
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/****
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***** Test memcpy(), memccpy(), and movedata().
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****/
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void TestCopy( void )
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{
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char bufA[80], bufB[80];
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strcpy( bufB, "Hello, world!" ); /* initialize bufB */
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memccpy( bufA, bufB, 'o', strlen(bufB)+1 ); /* copy "Hello" to bufA */
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VERIFY( !memcmp(bufA, "Hello", 5) ); /* ensure copied ok */
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memcpy( bufA, bufB, strlen(bufB)+1 ); /* copy to bufA */
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VERIFY( !strcmp(bufA, bufB) ); /* ensure copied ok */
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}
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#if defined(__386__) || defined(M_I86)
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void TestCopyF( void )
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{
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char __far bufA[80], bufB[80];
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char __far testStr[] = "Foo Bar Goober Blah";
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strcpy( bufB, "Hello, world!" ); /* initialize bufB */
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_fmemccpy( bufA, bufB, 'o', strlen(bufB)+1 ); /* copy "Hello" to bufA */
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VERIFY( !_fmemcmp(bufA, "Hello", 5) ); /* ensure copied ok */
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_fmemcpy( bufA, bufB, strlen(bufB)+1 ); /* copy to bufA */
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VERIFY( !_fstrcmp(bufA, bufB) ); /* ensure copied ok */
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movedata( FP_SEG(bufA), FP_OFF(bufA), /* copy data */
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FP_SEG(testStr), FP_OFF(testStr),
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_fstrlen(testStr) );
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VERIFY( !_fmemcmp(bufA, testStr, _fstrlen(testStr)) );
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}
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#endif
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/****
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***** Test memmove().
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****/
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void TestOverlap( void )
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{
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char bufA[80], bufB[80];
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strcpy( bufA, " Hello, world!" ); /* initialize string */
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memmove( bufB, bufA, strlen(bufA)+1 ); /* copy string */
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VERIFY( !strcmp(bufB, bufA) );
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memmove( bufA, bufA+1, strlen(bufA+1) ); /* shift one character over */
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VERIFY( !strcmp(bufA, "Hello, world!!") );
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memmove( bufA+1, bufA, strlen(bufA+1) );
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VERIFY( !strcmp(bufA, "HHello, world!") );
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}
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#if defined(__386__) || defined(M_I86)
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void TestOverlapF( void )
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{
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char bufA[80], bufB[80];
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strcpy( bufA, " Hello, world!" ); /* initialize string */
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_fmemmove( bufB, bufA, strlen(bufA)+1 ); /* copy string */
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VERIFY( !strcmp(bufB, bufA) );
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_fmemmove( bufA, bufA+1, strlen(bufA+1) ); /* shift one character over */
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VERIFY( !strcmp(bufA, "Hello, world!!") );
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_fmemmove( bufA+1, bufA, strlen(bufA+1) );
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VERIFY( !strcmp(bufA, "HHello, world!") );
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}
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#endif
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/****
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***** Test memset(), _fmemset(), and swab().
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****/
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void TestMisc( void )
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{
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char bufA[80], bufB[80];
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void * addr;
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int count;
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addr = memset( bufA, 0x00, 80 ); /* zero out memory */
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VERIFY( addr == bufA );
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for( count=0; count<80; count++ ) /* ensure all zero bytes */
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VERIFY( bufA[count] == 0x00 );
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#if defined(__386__) || defined(M_I86)
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{
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void __far * addrFar;
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addrFar = _fmemset( bufB, 0x00, 80 ); /* zero out memory */
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VERIFY( addrFar == bufB );
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for( count=0; count<80; count++ ) { /* ensure all zero bytes */
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VERIFY( bufB[count] == 0x00 );
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}
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}
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#else
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memset( bufB, 0x00, 80 ); /* zero out memory */
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#endif
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strcpy( bufA, "eHll,ow rodl" ); /* initialize string */
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swab( bufA, bufB, strlen(bufA) ); /* swap pairs of characters */
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VERIFY( !strcmp(bufB, "Hello, world") ); /* ensure swapped ok */
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}
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