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authorMattias Andrée <maandree@kth.se>2022-06-11 16:37:09 +0200
committerMattias Andrée <maandree@kth.se>2022-06-11 16:37:09 +0200
commitfcfe59c1f2219408ac2a9cd84b386816ff252221 (patch)
tree0f46c009babfba2d0200ece3ecce067c548a66b6 /reallocarray.c
parentRemove `static` from some `static inline` (diff)
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Fix warnings, replace some static inline with inline + extern inline, and fix glibc support
Diffstat (limited to 'reallocarray.c')
-rw-r--r--reallocarray.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/reallocarray.c b/reallocarray.c
new file mode 100644
index 0000000..640e84a
--- /dev/null
+++ b/reallocarray.c
@@ -0,0 +1,59 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+#ifndef TEST
+
+
+extern inline void *libsimple_reallocarray(void *, size_t, size_t);
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+ struct allocinfo *info;
+ void *ptr, *old;
+
+ assert((ptr = libsimple_reallocarray(NULL, 1, 5)));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(ptr)));
+ assert(info->size == 5);
+ assert(!info->zeroed);
+ assert(!((uintptr_t)ptr % (uintptr_t)(info->alignment)));
+ info->refcount += 1;
+ }
+ stpcpy(ptr, "test");
+ assert((ptr = libsimple_reallocarray(old = ptr, 10, 10)));
+ assert(!strcmp(ptr, "test"));
+ if (have_custom_malloc()) {
+ assert((info = get_allocinfo(ptr)));
+ assert(info->size == 100);
+ assert(!info->zeroed);
+ assert(!((uintptr_t)ptr % (uintptr_t)(info->alignment)));
+ assert(ptr != old);
+ free(old);
+ }
+ free(ptr);
+
+ if (have_custom_malloc()) {
+ alloc_fail_in = 1;
+ assert(!libsimple_reallocarray(NULL, 1, 1) && errno == ENOMEM);
+ assert(!alloc_fail_in);
+ }
+
+#if defined(__GNUC__) && !defined(__clang)
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Walloc-size-larger-than="
+#endif
+
+ assert(!libsimple_reallocarray(NULL, SIZE_MAX, SIZE_MAX) && errno == ENOMEM);
+
+#if defined(__GNUC__) && !defined(__clang)
+# pragma GCC diagnostic pop
+#endif
+
+ return 0;
+}
+
+#endif