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Bug 900260: Explicitly cast 64-bit value to size_t, to fix build warning on 32-bit platforms (which won't run this code anyway). r=froydnj

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This commit is contained in:
Daniel Holbert 2013-08-06 07:13:59 -07:00
parent dfd8f3cd91
commit a6d8bf4063
1 changed files with 9 additions and 1 deletions
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10
content/base/src/nsTextFragmentImpl.h
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@ -16,7 +16,15 @@ template<> struct Non8BitParameters<4> {
};
template<> struct Non8BitParameters<8> {
static inline size_t mask() { return 0xff00ff00ff00ff00; }
static inline size_t mask() {
static const uint64_t maskAsUint64 = 0xff00ff00ff00ff00ULL;
// We have to explicitly cast this 64-bit value to a size_t, or else
// compilers for 32-bit platforms will warn about it being too large to fit
// in the size_t return type. (Fortunately, this code isn't actually
// invoked on 32-bit platforms -- they'll use the <4> specialization above.
// So it is, in fact, OK that this value is too large for a 32-bit size_t.)
return (size_t)maskAsUint64;
}
static inline uint32_t alignMask() { return 0x7; }
static inline uint32_t numUnicharsPerWord() { return 4; }
};