diff options
author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
---|---|---|
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-neg2.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-neg2.C')
-rw-r--r-- | gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-neg2.C | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-neg2.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-neg2.C new file mode 100644 index 000000000..793b4c3f5 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/constexpr-neg2.C @@ -0,0 +1,27 @@ +// PR c++/54020 +// { dg-do compile { target c++11 } } + +// Preliminaries. +extern int nonconst_func(int); +constexpr int identity(int x) { return x; } +constexpr int zero() { return identity(0); } +constexpr int one() { return identity(1); } + +// Correctly accepted. +constexpr int three = one() ? 3 : nonconst_func(0); + +// Incorrectly accepted. See [dcl.constexpr] #5: +// For a constexpr function, if no function argument values exist +// such that the function invocation sub-stitution would produce a +// constant expression (5.19), the program is ill-formed; no diagnostic +// required. +constexpr int bogus() { return zero () ? 3 : nonconst_func(0); } // { dg-error "nonconst_func" } + +// Correctly rejected (not sure why). +constexpr int correct_error() { return nonconst_func(0); } // { dg-error "nonconst_func" } + +// Correctly rejected. +constexpr int z = bogus(); // { dg-error "" } + +// This is also correctly rejected. +constexpr int correct_failure() { return 0 ? 3 : nonconst_func(0); } // { dg-error "nonconst_func" } |