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[/] [openrisc/] [tags/] [gnu-dev/] [fsf-gcc-snapshot-1-mar-12/] [or1k-gcc/] [libstdc++-v3/] [testsuite/] [decimal/] [cast_neg.cc] - Rev 783
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// 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 // <http://www.gnu.org/licenses/>. // { 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 <decimal/decimal> #include <testsuite_hooks.h> 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" } }