1 files changed, 50 insertions, 0 deletions
diff --git a/memsetelem.c b/memsetelem.c
new file mode 100644
index 0000000..6bcf021
--- /dev/null
+++ b/memsetelem.c
@@ -0,0 +1,50 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+#ifndef TEST
+
+
+extern inline void *libsimple_memsetelem(void *, const void *, size_t, size_t);
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+	char p_[4096];
+	char *p = p_;
+	size_t i;
+
+	memset(p, 0, sizeof(p_));
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 0, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 0, 10) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 1, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 2, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 4, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 8, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 16, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){~0}, 3, 0) == p);
+	assert(libsimple_memsetelem(p, &(uint8_t){0x09}, 1, 3000) == p);
+	assert(libsimple_memsetelem(p, &(uint16_t){0x0807}, 2, 1000) == p);
+	assert(libsimple_memsetelem(p, &(uint32_t){0x10203040UL}, 4, 300) == p);
+	assert(libsimple_memsetelem(p, &(uint64_t){0x0102030450607080ULL}, 8, 100) == p);
+	assert(libsimple_memsetelem(p, (char []){0xA0, 0xB0, 0xC0}, 3, 16) == p);
+
+	for (i = 0; i < 48; i++)
+		assert(p[i] == ((char []){0xA0, 0xB0, 0xC0})[i % 3]);
+	for (; i < 800; i += 8)
+		assert(*(uint64_t *)&p[i] == 0x0102030450607080ULL);
+	for (; i < 1200; i += 4)
+		assert(*(uint32_t *)&p[i] == 0x10203040UL);
+	for (; i < 2000; i += 2)
+		assert(*(uint16_t *)&p[i] == 0x0807);
+	for (; i < 3000; i++)
+		assert(p[i] == 0x09);
+	for (; i < sizeof(p_); i++)
+		assert(p[i] == 0);
+
+	return 0;
+}
+
+#endif