http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51665
Bug #: 51665
Summary: undefined reference when passing static const int
member to template method
Classification: Unclassified
Product: gcc
Version: 4.6.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: gcc-bugzi...@bluespirit.la
Created attachment 26172
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26172
sources, save-temps, command line
Calling the template method qMax(T,T) with a constant (static const int) as
first parameter, I get an undefined reference. When saving this constant to a
local constant and using this for as template parameter, everything works fine.
Using Debian testing with Gcc 4.6.2-7 on Linux 3.1.0.1-686-pae.
Command line: g++ *.cpp
ld --version: GNU ld (GNU Binutils for Debian) 2.22
g++ --version: g++ (Debian 4.6.2-7) 4.6.2
template
inline const T &qMax(const T &a, const T &b) { if (a < b) return b; return a; }
class MyClass
{
public:
void doSomething();
private:
static const int M_SOME_CONSTANT = 24;
};
//
// NOT WORKING
//
void MyClass::doSomething()
{
int iValue = 77 + M_SOME_CONSTANT;
iValue += qMax( M_SOME_CONSTANT, 12 );
}
//
// WORKING
//
void MyClass::doSomething()
{
int iValue = 77 + M_SOME_CONSTANT;
const int iTmp = M_SOME_CONSTANT;
iValue += qMax( iTmp , 12 );
}
