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Make the copy member of StringRef/ArrayRef generic wrt allocators.

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Doesn't make sense to restrict this to BumpPtrAllocator. While there
replace an explicit loop with std::equal. Some standard libraries know
how to compile this down to a ::memcmp call if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206615 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2014-04-18 16:36:15 +00:00
parent 7b4b261611
commit 98b539ae65
3 changed files with 9 additions and 13 deletions
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7
include/llvm/ADT/StringRef.h
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@ -10,7 +10,6 @@
#ifndef LLVM_ADT_STRINGREF_H
#define LLVM_ADT_STRINGREF_H
#include "llvm/Support/Allocator.h"
#include <algorithm>
#include <cassert>
#include <cstring>
@ -124,9 +123,9 @@ namespace llvm {
return Data[Length-1];
}
// copy - Allocate copy in BumpPtrAllocator and return StringRef to it.
StringRef copy(BumpPtrAllocator &Allocator) {
char *S = Allocator.Allocate<char>(Length);
// copy - Allocate copy in Allocator and return StringRef to it.
template <typename Allocator> StringRef copy(Allocator &A) {
char *S = A.template Allocate<char>(Length);
std::copy(begin(), end(), S);
return StringRef(S, Length);
}