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re PR c++/61745 (template friend for dyadic operator- is only accepted if the monadic operator- follows it) 

2014-09-18  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/61745
	* g++.dg/template/pr61745.C: New.

From-SVN: r215345
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Paolo Carlini 2014-09-18 09:15:25 +00:00 committed by Paolo Carlini
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gcc/testsuite/ChangeLog
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2014-09-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/61745
* g++.dg/template/pr61745.C: New.
2014-09-17 Marek Polacek <polacek@redhat.com>
PR c/61854

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gcc/testsuite/g++.dg/template/pr61745.C Normal file
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// PR c++/61745
template <typename INT,INT P> class Zp;
template <typename INT,INT P>
Zp<INT,P> operator-(const Zp<INT,P>& a, const Zp<INT,P>& b);
template <typename INT,INT P>
class Zp {
public:
static const INT p = P;
private:
INT val;
public:
Zp() : val(0) {}
Zp( INT x ) : val(x%p) { if (x < 0 ) x+= p; }
// this compiles only if the following definition is moved
// AFTER the friend declaration
Zp operator-() const { return Zp(p-val); }
friend Zp<INT,P> operator- <>(const Zp<INT,P>& a, const Zp<INT,P>& b); // { dg-error "declaration|expected" }
};