Casts and rewrites to avoid clang sanitize warnings.

git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1085 6239d852-aaf2-0410-a92c-79f79f948069

1 files changed, 8 insertions, 2 deletions

diff --git a/src/pcre2_compile.c b/src/pcre2_compile.c
index 30db6d5..ab48d2d 100644
--- a/src/pcre2_compile.c
+++ b/src/pcre2_compile.c
@@ -5948,7 +5948,10 @@ for (;; pptr++)
         (void)memmove(code + (32 / sizeof(PCRE2_UCHAR)), code,
           CU2BYTES(class_uchardata - code));
         if (negate_class && !xclass_has_prop)
-          for (i = 0; i < 32; i++) classbits[i] = ~classbits[i];
+          { 
+          /* Using 255 ^ instead of ~ avoids clang sanitize warning. */ 
+          for (i = 0; i < 32; i++) classbits[i] = 255 ^ classbits[i];
+          } 
         memcpy(code, classbits, 32);
         code = class_uchardata + (32 / sizeof(PCRE2_UCHAR));
         }
@@ -5971,7 +5974,10 @@ for (;; pptr++)
     if (lengthptr == NULL)    /* Save time in the pre-compile phase */
       {
       if (negate_class)
-        for (i = 0; i < 32; i++) classbits[i] = ~classbits[i];
+        { 
+       /* Using 255 ^ instead of ~ avoids clang sanitize warning. */ 
+       for (i = 0; i < 32; i++) classbits[i] = 255 ^ classbits[i];
+       } 
       memcpy(code, classbits, 32);
       }
     code += 32 / sizeof(PCRE2_UCHAR);