explicit73.c

来自「gcc-you can use this code to learn somet」· C语言 代码 · 共 16 行

// Build don't link:

// by Alexandre Oliva <[e-mail]>

// According to [temp.expl.spec]/2, a template explicit specialization
// must be declared in the namespace that contains the declaration of
// the template

namespace N {
  template <class T> class foo;	// ERROR - referenced below
}

using namespace N;

template <> class foo<void>; // ERROR - invalid specialization