[Bug c++/34886] New: Strangeness of name lookup in template function

rvovsd at mail dot ru gcc-bugzilla@gcc.gnu.org
Sun Jan 20 16:44:00 GMT 2008


On compiling that code:

--- begin code ---
class Y {};

void f(Y*) { } // line 3. If comment - all ok

template < typename T>
void sel(T* a) { f(a); } //line 6

void f(void*) {}

int main(int argc, char **argv)
{
        sel((void*)0); //line 12
}
--- end code ---

Àppears error:
../main.cpp: In function ‘void sel(T*) [with T = void]’:
../main.cpp:12:   instantiated from here
../main.cpp:6: error: invalid conversion from ‘void*’ to ‘Y*’
../main.cpp:6: error:   initializing argument 1 of ‘void f(Y*)’

If comment line 3, then work.
Also work, if line 3 move after line 6.

If functions f(Y*), f(void*) and sel(T*) placed in different header files, then
arise dependency on order including headers.


-- 
           Summary: Strangeness of name lookup in template function
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rvovsd at mail dot ru
  GCC host triplet: openSuse 10.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34886



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