1 files changed, 57 insertions, 0 deletions
diff --git a/strntoupper.c b/strntoupper.c
new file mode 100644
index 0000000..2959af8
--- /dev/null
+++ b/strntoupper.c
@@ -0,0 +1,57 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+extern inline char *libsimple_strntoupper(char *, const char *, size_t);
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+	char buf[100];
+
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[3], &buf[0], SIZE_MAX), "ABCDEABCDE12345"));
+	assert(!strcmp(buf, "abcABCDEABCDE12345"));
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[0], &buf[3], SIZE_MAX), "DEABCDE12345"));
+	assert(!strcmp(buf, "DEABCDE12345"));
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[0], &buf[0], SIZE_MAX), "ABCDEABCDE12345"));
+	assert(!strcmp(buf, "ABCDEABCDE12345"));
+
+	memset(buf, 0, sizeof(buf));
+	stpcpy(buf, "abcdeABCDE12345");
+	buf[18] = 'x';
+	assert(!strcmpnul(libsimple_strntoupper(&buf[3], &buf[0], 15), "ABCDEABCDE12345x"));
+	assert(!strcmp(buf, "abcABCDEABCDE12345x"));
+	memset(buf, 0, sizeof(buf));
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[0], &buf[3], 12), "DEABCDE12345345"));
+	assert(!strcmp(buf, "DEABCDE12345345"));
+	memset(buf, 0, sizeof(buf));
+	stpcpy(buf, "abcdeABCDE12345x");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[0], &buf[0], 15), "ABCDEABCDE12345x"));
+	assert(!strcmp(buf, "ABCDEABCDE12345x"));
+
+	memset(buf, 0, sizeof(buf));
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[3], &buf[0], 0), "deABCDE12345"));
+	assert(!strcmp(buf, "abcdeABCDE12345"));
+	memset(buf, 0, sizeof(buf));
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[0], &buf[3], 0), "abcdeABCDE12345"));
+	assert(!strcmp(buf, "abcdeABCDE12345"));
+	memset(buf, 0, sizeof(buf));
+	stpcpy(buf, "abcdeABCDE12345");
+	assert(!strcmpnul(libsimple_strntoupper(&buf[0], &buf[0], 0), "abcdeABCDE12345"));
+	assert(!strcmp(buf, "abcdeABCDE12345"));
+
+	return 0;
+}
+
+#endif