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re PR c++/24449 (Unable to declare friend main() from class template) 

/cp
2012-10-12  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/24449
	* decl.c (grokfndecl): When checking for ::main declarations
	use PROCESSING_REAL_TEMPLATE_DECL_P().

/testsuite
2012-10-12  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/24449
	* g++.dg/parse/friend-main.C: New.

From-SVN: r192402
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Paolo Carlini 2012-10-12 14:38:11 +00:00 committed by Paolo Carlini
parent 5e54f81df1
commit e74a506f4e
4 changed files with 42 additions and 1 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2012-10-12 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/24449
* decl.c (grokfndecl): When checking for ::main declarations
use PROCESSING_REAL_TEMPLATE_DECL_P().
2012-10-12 Marc Glisse <marc.glisse@inria.fr>
PR c++/53055

2
gcc/cp/decl.c
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@ -7416,7 +7416,7 @@ grokfndecl (tree ctype,
if (ctype == NULL_TREE && DECL_MAIN_P (decl))
{
if (processing_template_decl)
if (PROCESSING_REAL_TEMPLATE_DECL_P())
error ("cannot declare %<::main%> to be a template");
if (inlinep)
error ("cannot declare %<::main%> to be inline");

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-10-12 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/24449
* g++.dg/parse/friend-main.C: New.
2012-10-12 Marc Glisse <marc.glisse@inria.fr>
PR c++/53055

30
gcc/testsuite/g++.dg/parse/friend-main.C Normal file
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@ -0,0 +1,30 @@
// PR c++/24449
class Fooa
{
friend int main();
};
template <class T> class Foob
{
friend int main();
int i;
};
int main()
{
Foob<void> a;
a.i = 7;
}
class Fooc
{
template<class T> friend int main(); // { dg-error "cannot declare .::main. to be a template" }
};
template<class T> class Food
{
template<class U> friend int main(); // { dg-error "cannot declare .::main. to be a template" }
};
template<class U> int main() {} // { dg-error "cannot declare .::main. to be a template" }