| 1 | /* Test and measure stpncpy functions. |
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| 2 | Copyright (C) 1999-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #define STRNCPY_RESULT(dst, len, n) ((dst) + ((len) > (n) ? (n) : (len))) |
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| 20 | #define TEST_MAIN |
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| 21 | #ifndef WIDE |
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| 22 | # define TEST_NAME "stpncpy" |
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| 23 | #else |
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| 24 | # define TEST_NAME "wcpncpy" |
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| 25 | #endif /* WIDE */ |
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| 26 | #include "test-string.h" |
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| 27 | #ifndef WIDE |
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| 28 | # define CHAR char |
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| 29 | # define SIMPLE_STPNCPY simple_stpncpy |
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| 30 | # define STUPID_STPNCPY stupid_stpncpy |
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| 31 | # define STPNCPY stpncpy |
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| 32 | # define STRNLEN strnlen |
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| 33 | #else |
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| 34 | # include <wchar.h> |
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| 35 | # define CHAR wchar_t |
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| 36 | # define SIMPLE_STPNCPY simple_wcpncpy |
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| 37 | # define STUPID_STPNCPY stupid_wcpncpy |
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| 38 | # define STPNCPY wcpncpy |
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| 39 | # define STRNLEN wcsnlen |
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| 40 | #endif /* WIDE */ |
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| 41 | |
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| 42 | CHAR *SIMPLE_STPNCPY (CHAR *, const CHAR *, size_t); |
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| 43 | CHAR *STUPID_STPNCPY (CHAR *, const CHAR *, size_t); |
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| 44 | |
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| 45 | IMPL (STUPID_STPNCPY, 0) |
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| 46 | IMPL (SIMPLE_STPNCPY, 0) |
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| 47 | IMPL (STPNCPY, 1) |
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| 48 | |
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| 49 | CHAR * |
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| 50 | SIMPLE_STPNCPY (CHAR *dst, const CHAR *src, size_t n) |
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| 51 | { |
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| 52 | while (n--) |
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| 53 | if ((*dst++ = *src++) == '\0') |
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| 54 | { |
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| 55 | size_t i; |
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| 56 | |
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| 57 | for (i = 0; i < n; ++i) |
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| 58 | dst[i] = '\0'; |
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| 59 | return dst - 1; |
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| 60 | } |
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| 61 | return dst; |
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| 62 | } |
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| 63 | |
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| 64 | CHAR * |
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| 65 | STUPID_STPNCPY (CHAR *dst, const CHAR *src, size_t n) |
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| 66 | { |
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| 67 | size_t nc = STRNLEN (src, n); |
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| 68 | size_t i; |
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| 69 | |
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| 70 | for (i = 0; i < nc; ++i) |
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| 71 | dst[i] = src[i]; |
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| 72 | for (; i < n; ++i) |
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| 73 | dst[i] = '\0'; |
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| 74 | return dst + nc; |
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| 75 | } |
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| 76 | |
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| 77 | #undef CHAR |
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| 78 | #include "test-strncpy.c" |
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| 79 | |
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