optimize: use built-in str comparison, as this is optimized in assembly

do only when possible. However, the profiler only shows as *very* minimal
effect.

1 files changed, 1 insertions, 7 deletions

diff --git a/runtime/stringbuf.c b/runtime/stringbuf.c
index 5bca009d..d9f80231 100644
--- a/runtime/stringbuf.c
+++ b/runtime/stringbuf.c
@@ -870,13 +870,7 @@ int rsCStrSzStrCmp(cstr_t *pCS1, uchar *psz, size_t iLenSz)
 			 * length, so we need to actually check if they
 			 * are equal.
 			 */
-			register size_t i;
-			for(i = 0 ; i < iLenSz ; ++i) {
-				if(pCS1->pBuf[i] != psz[i])
-					return pCS1->pBuf[i] - psz[i];
-			}
-			/* if we arrive here, the strings are equal */
-			return 0;
+			return strncmp((char*)pCS1->pBuf, (char*)psz, iLenSz);
 		}
 	else
 		return pCS1->iStrLen - iLenSz;