Merged branch stdio_rewrite back into trunk.

[pdclib] / functions / string / strcmp.c

diff --git a/functions/string/strcmp.c b/functions/string/strcmp.c
index 42ed51c01c86d5b96a9a62270d35015185694179..5202771a67d52f266000746cf63c7608cd9b7682 100644 (file)
--- a/functions/string/strcmp.c
+++ b/functions/string/strcmp.c
@@ -17,7 +17,7 @@ int strcmp( const char * s1, const char * s2 )
         ++s1;
         ++s2;
     }
-    return ( *s1 - *s2 );
+    return ( *(unsigned char *)s1 - *(unsigned char *)s2 );
 }
 
 #endif
@@ -28,12 +28,14 @@ int strcmp( const char * s1, const char * s2 )
 int main( void )
 {
     char cmpabcde[] = "abcde";
+    char cmpabcd_[] = "abcd\xfc";
     char empty[] = "";
     TESTCASE( strcmp( abcde, cmpabcde ) == 0 );
     TESTCASE( strcmp( abcde, abcdx ) < 0 );
     TESTCASE( strcmp( abcdx, abcde ) > 0 );
     TESTCASE( strcmp( empty, abcde ) < 0 );
     TESTCASE( strcmp( abcde, empty ) > 0 );
+    TESTCASE( strcmp( abcde, cmpabcd_ ) < 0 );
     return TEST_RESULTS;
 }
 #endif