61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/* wcsncat( wchar_t *, const wchar_t *, size_t )
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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 <wchar.h>
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#ifndef REGTEST
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wchar_t * wcsncat( wchar_t * _PDCLIB_restrict s1,
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const wchar_t * _PDCLIB_restrict s2,
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size_t n )
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{
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wchar_t * rc = s1;
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while ( *s1 )
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{
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++s1;
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}
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while ( n && ( *s1++ = *s2++ ) )
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{
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--n;
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}
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if ( n == 0 )
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{
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*s1 = '\0';
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}
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return rc;
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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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wchar_t s[] = L"xx\0xxxxxx";
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TESTCASE( wcsncat( s, wabcde, 10 ) == s );
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TESTCASE( s[2] == L'a' );
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TESTCASE( s[6] == L'e' );
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TESTCASE( s[7] == L'\0' );
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TESTCASE( s[8] == L'x' );
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s[0] = L'\0';
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TESTCASE( wcsncat( s, wabcdx, 10 ) == s );
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TESTCASE( s[4] == L'x' );
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TESTCASE( s[5] == L'\0' );
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TESTCASE( wcsncat( s, L"\0", 10 ) == s );
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TESTCASE( s[5] == L'\0' );
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TESTCASE( s[6] == L'e' );
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TESTCASE( wcsncat( s, wabcde, 0 ) == s );
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TESTCASE( s[5] == L'\0' );
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TESTCASE( s[6] == L'e' );
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TESTCASE( wcsncat( s, wabcde, 3 ) == s );
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TESTCASE( s[5] == L'a' );
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TESTCASE( s[7] == L'c' );
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TESTCASE( s[8] == L'\0' );
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return TEST_RESULTS;
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}
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#endif
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