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authorMattias Andrée <maandree@kth.se>2024-08-18 09:43:16 +0200
committerMattias Andrée <maandree@kth.se>2024-08-18 09:43:16 +0200
commit715b59e5002b971a987c3c8a2e1b3e61d80388f7 (patch)
treeaa64aa9fed94388056432f0f4a2180d5c03523fd /wcsndup.c
parentAdd @since for definitions added in version 1.0 and 1.1 (diff)
parentFix tests and libsimple_arraycpy and libsimple_arraymove (diff)
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Merge tag '1.2' into since
Version 1.2
Diffstat (limited to '')
-rw-r--r--wcsndup.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/wcsndup.c b/wcsndup.c
new file mode 100644
index 0000000..5621084
--- /dev/null
+++ b/wcsndup.c
@@ -0,0 +1,106 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+#ifndef TEST
+
+
+wchar_t *
+libsimple_wcsndup(const wchar_t *s, size_t n)
+{
+ size_t size;
+ wchar_t *ret;
+ n = wcsnlen(s, n);
+ size = (n + 1) * sizeof(wchar_t);
+ ret = aligned_alloc(_Alignof(wchar_t), size);
+ if (!ret)
+ return NULL;
+ wmemcpy(ret, s, n);
+ ret[n] = 0;
+ return ret;
+}
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+ struct allocinfo *info;
+ const wchar_t *s = L"test";
+ wchar_t *p;
+
+ p = libsimple_wcsndup(s, SIZE_MAX);
+ assert(p);
+ assert(p != s);
+ assert(!((uintptr_t)s % _Alignof(wchar_t)));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(p)));
+ assert(info->size == 5 * sizeof(wchar_t));
+ assert(info->alignment == _Alignof(wchar_t));
+ }
+ assert(!wmemcmp(p, s, 5));
+ wmemset(p, 0, 5);
+ assert(!wmemcmp(s, L"test", 5));
+ free(p);
+
+ p = libsimple_wcsndup(s, 10);
+ assert(p);
+ assert(p != s);
+ assert(!((uintptr_t)s % _Alignof(wchar_t)));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(p)));
+ assert(info->size == 5 * sizeof(wchar_t));
+ assert(info->alignment == _Alignof(wchar_t));
+ }
+ assert(!wmemcmp(p, s, 5));
+ wmemset(p, 0, 5);
+ assert(!wmemcmp(s, L"test", 5));
+ free(p);
+
+ p = libsimple_wcsndup(s, 5);
+ assert(p);
+ assert(p != s);
+ assert(!((uintptr_t)s % _Alignof(wchar_t)));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(p)));
+ assert(info->size == 5 * sizeof(wchar_t));
+ assert(info->alignment == _Alignof(wchar_t));
+ }
+ assert(!wmemcmp(p, s, 5));
+ wmemset(p, 0, 5);
+ assert(!wmemcmp(s, L"test", 5));
+ free(p);
+
+ p = libsimple_wcsndup(s, 4);
+ assert(p);
+ assert(p != s);
+ assert(!((uintptr_t)s % _Alignof(wchar_t)));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(p)));
+ assert(info->size == 5 * sizeof(wchar_t));
+ assert(info->alignment == _Alignof(wchar_t));
+ }
+ assert(!wmemcmp(p, s, 5));
+ wmemset(p, 0, 5);
+ assert(!wmemcmp(s, L"test", 5));
+ free(p);
+
+ p = libsimple_wcsndup(s, 2);
+ assert(p);
+ assert(p != s);
+ assert(!((uintptr_t)s % _Alignof(wchar_t)));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(p)));
+ assert(info->size == 3 * sizeof(wchar_t));
+ assert(info->alignment == _Alignof(wchar_t));
+ }
+ assert(!wmemcmp(p, s, 2));
+ assert(!p[2]);
+ wmemset(p, 0, 3);
+ assert(!wmemcmp(s, L"test", 5));
+ free(p);
+
+ return 0;
+}
+
+#endif