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authorDenys Vlasenko <vda.linux@googlemail.com>2011-12-05 03:54:14 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2011-12-05 03:54:14 (GMT)
commitb8ff9357d579913a5c699d89b4126d859590eea3 (patch)
tree4df7ce5c5f6558de99e55beab7c3fe6123a6f342
parent5560e1af0ada7eb75e8bd4945e2c05ab5d31b415 (diff)
downloadbusybox-b8ff9357d579913a5c699d89b4126d859590eea3.tar.gz
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suppress a "integer overflow in expression" waring on big endian. Closes 4405
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--include/bb_archive.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/bb_archive.h b/include/bb_archive.h
index 9e176d3..d1a9a34 100644
--- a/include/bb_archive.h
+++ b/include/bb_archive.h
@@ -12,9 +12,10 @@ enum {
/* .xz signature: 0xfd, '7', 'z', 'X', 'Z', 0x00 */
/* More info at: http://tukaani.org/xz/xz-file-format.txt */
XZ_MAGIC1 = 256 * 0xfd + '7',
- XZ_MAGIC2 = 256 * (256 * (256 * 'z' + 'X') + 'Z') + 0,
+ XZ_MAGIC2 = 256 * (unsigned)(256 * (256 * 'z' + 'X') + 'Z') + 0,
/* Different form: 32 bits, then 16 bits: */
- XZ_MAGIC1a = 256 * (256 * (256 * 0xfd + '7') + 'z') + 'X',
+ /* (unsigned) cast suppresses "integer overflow in expression" warning */
+ XZ_MAGIC1a = 256 * (unsigned)(256 * (256 * 0xfd + '7') + 'z') + 'X',
XZ_MAGIC2a = 256 * 'Z' + 0,
#else
COMPRESS_MAGIC = 0x9d1f,