X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fstring%2Fstrcmp.c;h=5202771a67d52f266000746cf63c7608cd9b7682;hp=42ed51c01c86d5b96a9a62270d35015185694179;hb=393020b6e48719d27699dea6b29e53025bbd5123;hpb=f408c1fd633015089d2a0fc6bc31c9f61eeae0a9

diff --git a/functions/string/strcmp.c b/functions/string/strcmp.c
index 42ed51c..5202771 100644
--- 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