Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.old-deja/g++.other/sizeof4.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
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// { dg-do assemble } // Copyright (C) 1999 Free Software Foundation, Inc. // Contributed by Nathan Sidwell 5 Sep 1999 <nathan@acm.org> // C++ does not decay lvalues into rvalues until as late as possible. This // means things like the rhs of a comma operator mustn't decay. This will make // a difference if it is an array or function. struct S; struct T {int m;}; extern S s; // an incomplete extern S arys[20]; // an incomplete array extern T aryt[]; // an incomplete array; void fn () {} int main (int argc, char **argv) { sizeof (s); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (0, s); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (argc ? s : s); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (arys); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (0, arys); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (argc ? arys : arys); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (aryt); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (0, aryt); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (argc ? aryt : aryt); // { dg-error "3:invalid application of .sizeof. to incomplete type" } incomplete sizeof (fn); // { dg-error "11:ISO C\\+\\+ forbids applying .sizeof." } cannot take size of function sizeof (0, fn); // { dg-error "3:invalid application of .sizeof. to a function type" } cannot take size of function sizeof (argc ? fn : fn); // { dg-error "3:invalid application of .sizeof. to a function type" } cannot take size of function sizeof (&fn); // ok sizeof (0, &fn); // ok sizeof (argc ? &fn : &fn); // ok return 0; }