Fix left shift signed overflow
lib/xmltok.c:1407:11: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
lib/xmltok.c:1409:16: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
diff --git a/expat/lib/xmltok.c b/expat/lib/xmltok.c
index 9a8e3ad..beb06bf 100644
--- a/expat/lib/xmltok.c
+++ b/expat/lib/xmltok.c
@@ -46,7 +46,7 @@
#define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16)
#define UCS2_GET_NAMING(pages, hi, lo) \
- (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F)))
+ (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1u << ((lo) & 0x1F)))
/* A 2 byte UTF-8 representation splits the characters 11 bits between
the bottom 5 and 6 bits of the bytes. We need 8 bits to index into
@@ -56,7 +56,7 @@
(namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \
+ ((((byte)[0]) & 3) << 1) \
+ ((((byte)[1]) >> 5) & 1)] \
- & (1 << (((byte)[1]) & 0x1F)))
+ & (1u << (((byte)[1]) & 0x1F)))
/* A 3 byte UTF-8 representation splits the characters 16 bits between
the bottom 4, 6 and 6 bits of the bytes. We need 8 bits to index
@@ -69,7 +69,7 @@
<< 3) \
+ ((((byte)[1]) & 3) << 1) \
+ ((((byte)[2]) >> 5) & 1)] \
- & (1 << (((byte)[2]) & 0x1F)))
+ & (1u << (((byte)[2]) & 0x1F)))
#define UTF8_GET_NAMING(pages, p, n) \
((n) == 2 \
