From 09e86060bf0aabee5a4b28770b673a743beec0dd Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Sat, 8 Feb 2020 16:41:56 +0100
Subject: [PATCH] remove some warnings when compiling with -Wsign-compare
---
pdf.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/pdf.c b/pdf.c
index 2e5e321..2504e78 100644
--- a/pdf.c
+++ b/pdf.c
@@ -1248,11 +1248,11 @@ p_xrefdata__m(HAllocator *mm__, const Dict *dict)
return p_fail;
if (i < 3) {
/* we can't take >64 bits and want to use size_t */
- if (w > 8 || w > sizeof(size_t))
+ if (w > 8 || (uint64_t)w > sizeof(size_t))
return p_fail;
W[i] = (size_t)w;
} else {
- if (w > SIZE_MAX - Wskip)
+ if ((uint64_t)w > SIZE_MAX - Wskip)
return p_fail; /* overflow */
Wskip += w;
}
@@ -1330,7 +1330,7 @@ p_xrefdata__m(HAllocator *mm__, const Dict *dict)
if (base->token_type != TT_SINT || base->sint < 0 ||
n->token_type != TT_SINT || n->sint < 0 ||
- n->sint > SIZE_MAX)
+ (uint64_t)n->sint > SIZE_MAX)
return p_fail;
p_subs[i] = p_xrefsub__m(mm__, base->sint, n->sint,
@@ -1467,7 +1467,7 @@ parse_xrefs(const uint8_t *input, size_t sz, size_t *nxrefs)
* one xref section at the beginning of the file that is
* allowed to point forward.
*/
- if (tok->sint >= offset)
+ if ((uint64_t)tok->sint >= offset)
nfwd++;
if (nfwd > 1) {
fprintf(stderr, "%s: /Prev pointer of xref section at "
--
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