diff options
Diffstat (limited to 'string')
| -rw-r--r-- | string/test-strncpy.c | 131 |
1 files changed, 85 insertions, 46 deletions
diff --git a/string/test-strncpy.c b/string/test-strncpy.c index d1c312a3a2..f10a3ab17f 100644 --- a/string/test-strncpy.c +++ b/string/test-strncpy.c @@ -1,4 +1,4 @@ -/* Test and measure strncpy functions. +/* Test strncpy functions. Copyright (C) 1999-2015 Free Software Foundation, Inc. This file is part of the GNU C Library. Written by Jakub Jelinek <jakub@redhat.com>, 1999. @@ -17,23 +17,56 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ +#ifdef WIDE +# include <wchar.h> +# define CHAR wchar_t +# define UCHAR wchar_t +# define BIG_CHAR WCHAR_MAX +# define SMALL_CHAR 1273 +# define MEMCMP wmemcmp +# define MEMSET wmemset +# define STRNLEN wcsnlen +#else +# define CHAR char +# define UCHAR unsigned char +# define BIG_CHAR CHAR_MAX +# define SMALL_CHAR 127 +# define MEMCMP memcmp +# define MEMSET memset +# define STRNLEN strnlen +#endif /* !WIDE */ + + #ifndef STRNCPY_RESULT # define STRNCPY_RESULT(dst, len, n) dst # define TEST_MAIN -# define TEST_NAME "strncpy" +# ifndef WIDE +# define TEST_NAME "strncpy" +# else +# define TEST_NAME "wcsncpy" +# endif /* WIDE */ # include "test-string.h" +# ifndef WIDE +# define SIMPLE_STRNCPY simple_strncpy +# define STUPID_STRNCPY stupid_strncpy +# define STRNCPY strncpy +# else +# define SIMPLE_STRNCPY simple_wcsncpy +# define STUPID_STRNCPY stupid_wcsncpy +# define STRNCPY wcsncpy +# endif /* WIDE */ -char *simple_strncpy (char *, const char *, size_t); -char *stupid_strncpy (char *, const char *, size_t); +CHAR *SIMPLE_STRNCPY (CHAR *, const CHAR *, size_t); +CHAR *STUPID_STRNCPY (CHAR *, const CHAR *, size_t); -IMPL (stupid_strncpy, 0) -IMPL (simple_strncpy, 0) -IMPL (strncpy, 1) +IMPL (STUPID_STRNCPY, 0) +IMPL (SIMPLE_STRNCPY, 0) +IMPL (STRNCPY, 1) -char * -simple_strncpy (char *dst, const char *src, size_t n) +CHAR * +SIMPLE_STRNCPY (CHAR *dst, const CHAR *src, size_t n) { - char *ret = dst; + CHAR *ret = dst; while (n--) if ((*dst++ = *src++) == '\0') { @@ -44,10 +77,10 @@ simple_strncpy (char *dst, const char *src, size_t n) return ret; } -char * -stupid_strncpy (char *dst, const char *src, size_t n) +CHAR * +STUPID_STRNCPY (CHAR *dst, const CHAR *src, size_t n) { - size_t nc = strnlen (src, n); + size_t nc = STRNLEN (src, n); size_t i; for (i = 0; i < nc; ++i) @@ -56,12 +89,12 @@ stupid_strncpy (char *dst, const char *src, size_t n) dst[i] = '\0'; return dst; } -#endif +#endif /* !STRNCPY_RESULT */ -typedef char *(*proto_t) (char *, const char *, size_t); +typedef CHAR *(*proto_t) (CHAR *, const CHAR *, size_t); static void -do_one_test (impl_t *impl, char *dst, const char *src, size_t len, size_t n) +do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, size_t len, size_t n) { if (CALL (impl, dst, src, n) != STRNCPY_RESULT (dst, len, n)) { @@ -71,7 +104,7 @@ do_one_test (impl_t *impl, char *dst, const char *src, size_t len, size_t n) return; } - if (memcmp (dst, src, len > n ? n : len) != 0) + if (memcmp (dst, src, (len > n ? n : len) * sizeof (CHAR)) != 0) { error (0, 0, "Wrong result in function %s", impl->name); ret = 1; @@ -96,23 +129,26 @@ static void do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char) { size_t i; - char *s1, *s2; + CHAR *s1, *s2; +/* For wcsncpy: align1 and align2 here mean alignment not in bytes, + but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)). */ align1 &= 7; - if (align1 + len >= page_size) + if ((align1 + len) * sizeof (CHAR) >= page_size) return; align2 &= 7; - if (align2 + len >= page_size) + if ((align2 + len) * sizeof (CHAR) >= page_size) return; - s1 = (char *) (buf1 + align1); - s2 = (char *) (buf2 + align2); + s1 = (CHAR *) (buf1) + align1; + s2 = (CHAR *) (buf2) + align2; for (i = 0; i < len; ++i) s1[i] = 32 + 23 * i % (max_char - 32); s1[len] = 0; - for (i = len + 1; i + align1 < page_size && i < len + 64; ++i) + for (i = len + 1; (i + align1) * sizeof (CHAR) < page_size && i < len + 64; + ++i) s1[i] = 32 + 32 * i % (max_char - 32); FOR_EACH_IMPL (impl, 0) @@ -123,12 +159,16 @@ static void do_random_tests (void) { size_t i, j, n, align1, align2, len, size, mode; - unsigned char *p1 = buf1 + page_size - 512; - unsigned char *p2 = buf2 + page_size - 512; - unsigned char *res; + UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512; + UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512; + UCHAR *res; for (n = 0; n < ITERATIONS; n++) { + /* For wcsncpy: align1 and align2 here mean align not in bytes, + but in wchar_ts, in bytes it will equal to align * (sizeof + (wchar_t)). */ + mode = random (); if (mode & 1) { @@ -166,7 +206,7 @@ do_random_tests (void) { size = random () & 511; if (size + j > 512) - size = 512 - j - (random() & 31); + size = 512 - j - (random () & 31); } else size = 512 - j; @@ -182,18 +222,17 @@ do_random_tests (void) p1[i] = 0; else { - p1[i] = random () & 255; + p1[i] = random () & BIG_CHAR; if (i >= align1 && i < len + align1 && !p1[i]) - p1[i] = (random () & 127) + 3; + p1[i] = (random () & SMALL_CHAR) + 3; } } FOR_EACH_IMPL (impl, 1) { - memset (p2 - 64, '\1', 512 + 64); - res = (unsigned char *) CALL (impl, - (char *) (p2 + align2), - (char *) (p1 + align1), size); + MEMSET (p2 - 64, '\1', 512 + 64); + res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), + (CHAR *) (p1 + align1), size); if (res != STRNCPY_RESULT (p2 + align2, len, size)) { error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p", @@ -235,7 +274,7 @@ do_random_tests (void) j = len + 1; if (size < j) j = size; - if (memcmp (p1 + align1, p2 + align2, j)) + if (MEMCMP (p1 + align1, p2 + align2, j)) { error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd)", n, impl->name, align1, align2, len); @@ -259,22 +298,22 @@ test_main (void) for (i = 1; i < 8; ++i) { - do_test (i, i, 16, 16, 127); - do_test (i, i, 16, 16, 255); - do_test (i, 2 * i, 16, 16, 127); - do_test (2 * i, i, 16, 16, 255); - do_test (8 - i, 2 * i, 1 << i, 2 << i, 127); - do_test (2 * i, 8 - i, 2 << i, 1 << i, 127); - do_test (8 - i, 2 * i, 1 << i, 2 << i, 255); - do_test (2 * i, 8 - i, 2 << i, 1 << i, 255); + do_test (i, i, 16, 16, SMALL_CHAR); + do_test (i, i, 16, 16, BIG_CHAR); + do_test (i, 2 * i, 16, 16, SMALL_CHAR); + do_test (2 * i, i, 16, 16, BIG_CHAR); + do_test (8 - i, 2 * i, 1 << i, 2 << i, SMALL_CHAR); + do_test (2 * i, 8 - i, 2 << i, 1 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 1 << i, 2 << i, BIG_CHAR); + do_test (2 * i, 8 - i, 2 << i, 1 << i, BIG_CHAR); } for (i = 1; i < 8; ++i) { - do_test (0, 0, 4 << i, 8 << i, 127); - do_test (0, 0, 16 << i, 8 << i, 127); - do_test (8 - i, 2 * i, 4 << i, 8 << i, 127); - do_test (8 - i, 2 * i, 16 << i, 8 << i, 127); + do_test (0, 0, 4 << i, 8 << i, SMALL_CHAR); + do_test (0, 0, 16 << i, 8 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 4 << i, 8 << i, SMALL_CHAR); + do_test (8 - i, 2 * i, 16 << i, 8 << i, SMALL_CHAR); } do_random_tests (); |