From ee2f18d0ee87f9287d16b3b93986bac1e0b100e4 Mon Sep 17 00:00:00 2001
From: Fredrik Lundh <fredrik@pythonware.com>
Date: Tue, 3 Jul 2001 19:27:05 +0000
Subject: [PATCH] bug #232815

ch is unsigned, so testing for negative values doesn't make
sense (as noticed by the OpenVMS compiler)
---
 Modules/regexpr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/regexpr.c b/Modules/regexpr.c
index 8b3658005f0..8694c743b3a 100644
--- a/Modules/regexpr.c
+++ b/Modules/regexpr.c
@@ -1383,7 +1383,7 @@ char *re_compile_pattern(unsigned char *regex, int size, regexp_t bufp)
 			if (a < '0' || a > '9')
 				goto bad_match_register;
 			ch = 10 * (a - '0') + ch - '0';
-			if (ch <= 0 || ch >= RE_NREGS)
+			if (ch == 0 || ch >= RE_NREGS)
 				goto bad_match_register;
 			bufp->uses_registers = 1;
 			opcode = Cmatch_memory;