5 /* strncpy( char *, const char *, size_t )
7 This file is part of the Public Domain C Library (PDCLib).
8 Permission is granted to use, modify, and / or redistribute at will.
11 #include <_PDCLIB_aux.h>
14 char * strncpy( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2, size_t n )
17 while ( ( n > 0 ) && ( *s1++ = *s2++ ) )
19 /* Cannot do "n--" in the conditional as size_t is unsigned and we have
20 to check it again for >0 in the next loop.
32 #include <_PDCLIB_test.h>
38 TESTCASE( strncpy( s, "", 1 ) == s );
39 TESTCASE( s[0] == '\0' );
40 TESTCASE( s[1] == 'x' );
41 TESTCASE( strncpy( s, abcde, 6 ) == s );
42 TESTCASE( s[0] == 'a' );
43 TESTCASE( s[4] == 'e' );
44 TESTCASE( s[5] == '\0' );
45 TESTCASE( s[6] == 'x' );
46 TESTCASE( strncpy( s, abcde, 7 ) == s );
47 TESTCASE( s[6] == '\0' );