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STLExtras: Add convenience is_contained() function.

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This commit adds a convenience is_contained() function
which checks if an element exists in a container. It is part of a larger
series of patches adding an MPI checker to the clang static analyzer.

Reviewers: dblaikie,bkramer

A patch by Alexander Droste!

Differential Revision:http://reviews.llvm.org/D16053

llvm-svn: 271757
This commit is contained in:
Devin Coughlin 2016-06-04 00:49:46 +00:00
parent bdf8e4b9f9
commit 9a58e5e9f3
1 changed files with 7 additions and 0 deletions
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7
include/llvm/ADT/STLExtras.h
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@ -412,6 +412,13 @@ auto remove_if(R &&Range, UnaryPredicate &&P) -> decltype(Range.begin()) {
return std::remove_if(Range.begin(), Range.end(), P);
}
/// Wrapper function around std::find to detect if an element exists
/// in a container.
template <typename R, typename E>
bool is_contained(R &&Range, const E &Element) {
return std::find(Range.begin(), Range.end(), Element) != Range.end();
}
//===----------------------------------------------------------------------===//
// Extra additions to <memory>
//===----------------------------------------------------------------------===//