Compile the test program below using this command line:
g++ test.cpp
The code below fails to compile, and gives the following error message:
-bash-3.00$ g++ test.cpp
test.cpp: In member function `void Test::cell_test()':
test.cpp:36: error: the default argument for parameter 1 of `void
Test::Cell_base<Type>::set(Type, bool) [with Type = const char*]' has not yet
been parsed
class Test
{
protected:
template< typename Type > class Cell_base
{
protected:
bool m_relevance;
Type m_field;
public:
Cell_base (void) // the
constructor
: m_relevance( false ),
m_field( Type() )
{ }
// the setter
void set (Type value, bool relevance = true)
{
m_relevance = relevance;
m_field = value;
}
};
class Cell : public Cell_base< const char * >
{
};
public:
//--------------------------------------------------
// Test out the cell classes
//--------------------------------------------------
void cell_test (void)
{
Cell c;
c.set( " To be or not to be \n\n" );
}
};
//------------------------------
// Main - program entry
//------------------------------
int main (int argc, char **argv)
{
Test t;
t.cell_test();
return 0;
}
--
Summary: Default argument of template function causes a compile-
time error
Product: gcc
Version: 3.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: SSacek at appsecinc dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21903
