Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-10-10 11:55:49 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Actually fix bustage: JS_STATIC_ASSERT cannot be used in classes.

Browse Source
This commit is contained in:
Luke Wagner 2009-08-18 09:21:53 -07:00
parent 02072a227a
commit 9e5d5e342e
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
js/src/jsvector.h
View File

@ -43,7 +43,6 @@
#include <string.h>
#include <new>
#include "jsutil.h"
#include "jsbit.h"
/* Library of template meta-programs for use in the C++ JS data-structures. */
@ -74,12 +73,16 @@ template <class T> struct BitSize {
static const size_t result = sizeof(T) * JS_BITS_PER_BYTE;
};
/* Allow Assertions by only including the 'result' typedef if 'true'. */
template <bool> struct StaticAssert {};
template <> struct StaticAssert<true> { typedef int result; };
/*
* Produce an N-bit mask, where N <= BitSize<size_t>::result. Handle the
* language-undefined edge case when N = BitSize<size_t>::result.
*/
template <size_t N> struct NBitMask {
JS_STATIC_ASSERT(N < BitSize<size_t>::result);
typedef typename StaticAssert<N < BitSize<size_t>::result>::result _;
static const size_t result = ~((size_t(1) << N) - 1);
};
template <> struct NBitMask<BitSize<size_t>::result> {