# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1607860386 -7200
# Node ID c834e1393eb0a0482d79db2352f5459e6b1da6b9
# Parent  ff724f45162ad75ca2c8b470f17497c1e0fc2904
Initialize regex parsing context before checking pointers.

diff -r ff724f45162a -r c834e1393eb0 th_regex.c
--- a/th_regex.c	Wed Nov 11 15:08:03 2020 +0200
+++ b/th_regex.c	Sun Dec 13 13:53:06 2020 +0200
@@ -457,6 +457,8 @@
     th_char_t *tmp = NULL;
     size_t start;
 
+    memset(&ctx, 0, sizeof(ctx));
+
     // Check pointers
     if (pexpr == NULL || pattern == NULL)
     {
@@ -465,7 +467,6 @@
     }
 
     // Initialize parsing context
-    memset(&ctx, 0, sizeof(ctx));
     ctx.pattern = pattern;
     ctx.bufSize = 256;