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SFINAE __bit_iterator such that it will only get instantiated with a container that has the nested type __storage_type. This prevents accidental instantiation such as in http://llvm.org/bugs/show_bug.cgi?id=12755. This fixes http://llvm.org/bugs/show_bug.cgi?id=12755.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@156308 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2012-05-07 16:50:38 +00:00
parent d2da6d2322
commit f867f6326b
3 changed files with 7 additions and 6 deletions
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6
include/bitset
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@@ -148,9 +148,9 @@ class __bitset
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef size_type __storage_type;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
@@ -406,9 +406,9 @@ class __bitset<1, _Size>
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef size_type __storage_type;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);
@@ -549,9 +549,9 @@ class __bitset<0, 0>
public:
typedef ptrdiff_t difference_type;
typedef size_t size_type;
typedef size_type __storage_type;
protected:
typedef __bitset __self;
typedef size_type __storage_type;
typedef __storage_type* __storage_pointer;
typedef const __storage_type* __const_storage_pointer;
static const unsigned __bits_per_word = static_cast<unsigned>(sizeof(__storage_type) * CHAR_BIT);