1 files changed, 46 insertions, 0 deletions
diff --git a/strrcasechr.c b/strrcasechr.c
new file mode 100644
index 0000000..979e61b
--- /dev/null
+++ b/strrcasechr.c
@@ -0,0 +1,46 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+#ifndef TEST
+
+
+char *
+libsimple_strrcasechr(const char *s_, int c)
+{
+	char *s = *(char **)(void *)&s_, lc = (char)tolower(c), uc = (char)toupper(c), *r = NULL;
+	if (lc != uc) {
+		for (; *s; s++)
+			if (*s == lc || *s == uc)
+				r = s;
+	} else {
+		for (; *s; s++)
+			if (*s == lc)
+				r = s;
+	}
+	return r;
+}
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+	assert(!strcmpnul(libsimple_strrcasechr("abcABCabcABCx123123", 'c'), "Cx123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("abcABCabcABCx123123", 'a'), "ABCx123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("abcABCabcABCx123123", 'x'), "x123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("abcABCabcABCx123123", 'C'), "Cx123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("abcABCabcABCx123123", 'A'), "ABCx123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("abcABCabcABCx123123", 'X'), "x123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", 'c'), "cX123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", 'a'), "abcX123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", 'x'), "X123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", 'C'), "cX123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", 'A'), "abcX123123"));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", 'X'), "X123123"));
+	assert(!libsimple_strrcasechr("ABCabcABCabcX123123", '0'));
+	assert(!strcmpnul(libsimple_strrcasechr("ABCabcABCabcX123123", '1'), "123"));
+	return 0;
+}
+
+#endif