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changeset 24312:f208ce59a6e5

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manifest.c: ensure realloc_if_full() returns 1 or 0 This fixes an MSVC 2008 warning that I don't see with gcc 4.6.3-2: warning C4047: 'return' : 'bool' differs in levels of indirection from 'line *' More importantly, the truncation from pointer to 'unsigned char' would have returned 0 if self->lines pointed to an address divisible by 0xFF, which causes find_lines() to return MANIFEST_OOM. I was able to cause this to happen in a trivial program with the gcc compiler.
author Matt Harbison <matt_harbison@yahoo.com>
date Fri, 13 Mar 2015 22:50:40 -0400
parents e02a0a419418
children ed535f2c15c3
files mercurial/manifest.c
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/manifest.c	Thu Mar 12 14:20:32 2015 -0700
+++ b/mercurial/manifest.c	Fri Mar 13 22:50:40 2015 -0400
@@ -104,7 +104,7 @@
 		self->maxlines *= 2;
 		self->lines = realloc(self->lines, self->maxlines * sizeof(line));
 	}
-	return self->lines;
+	return !!self->lines;
 }
 
 /*