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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-array-ptr5.C | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-array-ptr5.C')
-rw-r--r-- | gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-array-ptr5.C | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-array-ptr5.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-array-ptr5.C new file mode 100644 index 000000000..eec32d672 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-array-ptr5.C @@ -0,0 +1,32 @@ +// { dg-do compile { target c++11 } } + +template<class T> +constexpr T do_last(T* x, int n) { + return x[n - 1]; // +} + +template<class T, int N> +constexpr T last(T (&x)[N]) { + return do_last(x, N); +} + +constexpr bool is_negative(int x) { return x < 0; } + +template<class T> +struct IsNegative { + constexpr bool operator()(const T& x) { + return x < T(0); + } +}; + +template<class T, int N, class Pred> +constexpr bool has_neg(T (&x)[N], Pred p) { + return p(last(x)); // Line 22 +} + +constexpr int a[] = {1, -2}; + +constexpr auto answer1 = has_neg(a, IsNegative<int>{}); // Line 27 +constexpr auto answer2 = has_neg(a, is_negative); + +static_assert(answer2 == answer1, "Error"); |