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template <int N>
void f()
{
    N = 42;
}
 
template <int const N>
void g()
{
    N = 42;
}
 
int main()
{
    f<0>();
    g<0>();
 
    static const int h = 1;
    f<h>();
    g<h>();
}

prog.cpp: In function ‘void f() [with int N = 0]’:
prog.cpp:15:   instantiated from here
prog.cpp:4: error: lvalue required as left operand of assignment
prog.cpp: In function ‘void g() [with int N = 0]’:
prog.cpp:16:   instantiated from here
prog.cpp:10: error: lvalue required as left operand of assignment
prog.cpp: In function ‘void f() [with int N = 1]’:
prog.cpp:19:   instantiated from here
prog.cpp:4: error: lvalue required as left operand of assignment
prog.cpp: In function ‘void g() [with int N = 1]’:
prog.cpp:20:   instantiated from here
prog.cpp:10: error: lvalue required as left operand of assignment

Standard output is empty