[LLVMbugs] [Bug 18226] New: invalid 'use of class template %s requires template arguments'

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Dec 12 05:33:06 PST 2013


            Bug ID: 18226
           Summary: invalid 'use of class template %s requires template
           Product: clang
           Version: 3.2
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: vanyacpp at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

On the following code clang gives error:

1.cpp:16:26: error: use of class template y requires template arguments
     friend void x<U>::f(y);
But gcc and msvc compiles this code without any error.

template <typename U>
struct y;

template <typename T>
struct x
    void f(y<T> a)
        a.a = 5;

template <typename U>
struct y
     friend void x<U>::f(y); // error here

     int a;

int main()

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