From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libstdc++-v3/testsuite/decimal/cast_neg.cc | 62 ++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 libstdc++-v3/testsuite/decimal/cast_neg.cc (limited to 'libstdc++-v3/testsuite/decimal/cast_neg.cc') diff --git a/libstdc++-v3/testsuite/decimal/cast_neg.cc b/libstdc++-v3/testsuite/decimal/cast_neg.cc new file mode 100644 index 000000000..23749ba5e --- /dev/null +++ b/libstdc++-v3/testsuite/decimal/cast_neg.cc @@ -0,0 +1,62 @@ +// Copyright (C) 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// . + +// { dg-do compile } +// { dg-require-effective-target dfp } + +// ISO/IEC TR 24733 doesn't say explicitly that the conversion from a +// decimal floating-point type to a generic float type is prohibited but +// it implies that in section 4.3 when it says "In C, objects of decimal +// floating-oint type can be converted to generic floating-point type by +// means of an explicit cast. In C++ this is not possible." Check that +// attempt to do a cast are flagged as errors. + +#include +#include + +using namespace std::decimal; + +float f; +double d; +long double ld; +decimal32 d32; +decimal64 d64; +decimal128 d128; + +void +foo (void) +{ + f = d32; // { dg-error "error" } + f = d64; // { dg-error "error" } + f = d128; // { dg-error "error" } + d = d32; // { dg-error "error" } + d = d64; // { dg-error "error" } + d = d128; // { dg-error "error" } + ld = d32; // { dg-error "error" } + ld = d64; // { dg-error "error" } + ld = d128; // { dg-error "error" } + + f = (float)d32; // { dg-error "error" } + f = (float)d64; // { dg-error "error" } + f = (float)d128; // { dg-error "error" } + d = (double)d32; // { dg-error "error" } + d = (double)d64; // { dg-error "error" } + d = (double)d128; // { dg-error "error" } + ld = (long double)d32; // { dg-error "error" } + ld = (long double)d64; // { dg-error "error" } + ld = (long double)d128; // { dg-error "error" } +} -- cgit v1.2.3