39 lines
764 B
C
39 lines
764 B
C
/* strchr( const char *, int )
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This file is part of the Public Domain C Library (PDCLib).
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Permission is granted to use, modify, and / or redistribute at will.
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*/
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#include <string.h>
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#ifndef REGTEST
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char * strchr( const char * s, int c )
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{
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do
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{
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if ( *s == (char) c )
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{
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return (char *) s;
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}
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} while ( *s++ );
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return NULL;
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}
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#endif
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#ifdef TEST
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#include "_PDCLIB_test.h"
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int main( void )
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{
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char abccd[] = "abccd";
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TESTCASE( strchr( abccd, 'x' ) == NULL );
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TESTCASE( strchr( abccd, 'a' ) == &abccd[0] );
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TESTCASE( strchr( abccd, 'd' ) == &abccd[4] );
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TESTCASE( strchr( abccd, '\0' ) == &abccd[5] );
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TESTCASE( strchr( abccd, 'c' ) == &abccd[2] );
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return TEST_RESULTS;
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}
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#endif
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