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Diffstat (limited to 'include/llvm/ADT/VectorExtras.h')
-rw-r--r-- | include/llvm/ADT/VectorExtras.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/llvm/ADT/VectorExtras.h b/include/llvm/ADT/VectorExtras.h new file mode 100644 index 0000000000..68aa8078bd --- /dev/null +++ b/include/llvm/ADT/VectorExtras.h @@ -0,0 +1,29 @@ +//===-- VectorExtras.h - Helper functions for std::vector -------*- C++ -*-===// +// +// This file contains helper functions which are useful for working with the +// std::vector class. +// +//===----------------------------------------------------------------------===// + +#ifndef SUPPORT_VECTOREXTRAS_H +#define SUPPORT_VECTOREXTRAS_H + +#include <cstdarg> + +/// make_vector - Helper function which is useful for building temporary vectors +/// to pass into type construction of CallInst ctors. This turns a null +/// terminated list of pointers (or other value types) into a real live vector. +/// +template<typename T> +inline std::vector<T> make_vector(T A, ...) { + va_list Args; + va_start(Args, A); + std::vector<T> Result; + Result.push_back(A); + while (T Val = va_arg(Args, T)) + Result.push_back(Val); + va_end(Args); + return Result; +} + +#endif |