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-rw-r--r--ereallocarray.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/ereallocarray.c b/ereallocarray.c
new file mode 100644
index 0000000..2d07ee0
--- /dev/null
+++ b/ereallocarray.c
@@ -0,0 +1,67 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+extern inline void *libsimple_ereallocarray(void *, size_t, size_t);
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+ struct allocinfo *info;
+ void *ptr, *old;
+
+ assert((ptr = libsimple_ereallocarray(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_ereallocarray(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()) {
+ libsimple_default_failure_exit = 104;
+ alloc_fail_in = 1;
+ assert_exit_ptr(libsimple_ereallocarray(NULL, 1, 1));
+ assert(exit_status == 104);
+ assert_stderr("%s: reallocarray: %s\n", argv0, strerror(ENOMEM));
+ assert(!alloc_fail_in);
+ libsimple_default_failure_exit = 1;
+ }
+
+#if defined(__GNUC__) && !defined(__clang__)
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Walloc-size-larger-than="
+#endif
+
+ libsimple_default_failure_exit = 4;
+ assert_exit_ptr(libsimple_ereallocarray(NULL, SIZE_MAX, SIZE_MAX));
+ assert(exit_status == 4);
+ assert_stderr("%s: reallocarray: %s\n", argv0, strerror(ENOMEM));
+ libsimple_default_failure_exit = 1;
+
+#if defined(__GNUC__) && !defined(__clang__)
+# pragma GCC diagnostic pop
+#endif
+
+ return 0;
+}
+
+#endif