1 files changed, 42 insertions, 0 deletions
diff --git a/lib/libF77/s_cmp.c b/lib/libF77/s_cmp.c
new file mode 100644
index 000000000000..9e4c12619a2f
--- /dev/null
+++ b/lib/libF77/s_cmp.c
@@ -0,0 +1,42 @@
+#include "f2c.h"
+
+/* compare two strings */
+
+#ifdef KR_headers
+integer s_cmp(a, b, la, lb) register char *a, *b; ftnlen la, lb;
+#else
+integer s_cmp(register char *a, register char *b, ftnlen la, ftnlen lb)
+#endif
+{
+register char *aend, *bend;
+aend = a + la;
+bend = b + lb;
+
+if(la <= lb)
+	{
+	while(a < aend)
+		if(*a != *b)
+			return( *a - *b );
+		else
+			{ ++a; ++b; }
+
+	while(b < bend)
+		if(*b != ' ')
+			return( ' ' - *b );
+		else	++b;
+	}
+
+else
+	{
+	while(b < bend)
+		if(*a == *b)
+			{ ++a; ++b; }
+		else
+			return( *a - *b );
+	while(a < aend)
+		if(*a != ' ')
+			return(*a - ' ');
+		else	++a;
+	}
+return(0);
+}