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-rw-r--r--src/string/strcmp.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/string/strcmp.c b/src/string/strcmp.c
new file mode 100644
index 00000000..91eb7404
--- /dev/null
+++ b/src/string/strcmp.c
@@ -0,0 +1,7 @@
+#include <string.h>
+
+int strcmp(const char *l, const char *r)
+{
+ for (; *l==*r && *l && *r; l++, r++);
+ return *(unsigned char *)l - *(unsigned char *)r;
+}