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// (C) Copyright Steve Cleary & John Maddock 2000.
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for most recent version including documentation.
#include <boost/static_assert.hpp>
//
// all these tests should succeed.
// some of these tests are rather simplistic (ie useless)
// in order to ensure that they compile on all platforms.
//
// Namespace scope
BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
BOOST_STATIC_ASSERT(sizeof(char) == 1);
// Function (block) scope
void f()
{
BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
BOOST_STATIC_ASSERT(sizeof(char) == 1);
}
struct Bob
{
private: // can be in private, to avoid namespace pollution
BOOST_STATIC_ASSERT(sizeof(int) >= sizeof(short));
BOOST_STATIC_ASSERT(sizeof(char) == 1);
public:
// Member function scope: provides access to member variables
int x;
char c;
int f()
{
#ifndef _MSC_VER // broken sizeof in VC6
BOOST_STATIC_ASSERT(sizeof(x) >= sizeof(short));
BOOST_STATIC_ASSERT(sizeof(c) == 1);
#endif
return x;
}
};
// Template class scope
template <class Int, class Char>
struct Bill
{
private: // can be in private, to avoid namespace pollution
BOOST_STATIC_ASSERT(sizeof(Int) > sizeof(char));
public:
// Template member function scope: provides access to member variables
Int x;
Char c;
template <class Int2, class Char2>
void f(Int2 , Char2 )
{
BOOST_STATIC_ASSERT(sizeof(Int) == sizeof(Int2));
BOOST_STATIC_ASSERT(sizeof(Char) == sizeof(Char2));
}
};
void test_Bill() // BOOST_CT_ASSERTs are not triggerred until instantiated
{
Bill<int, char> z;
//Bill<int, int> bad; // will not compile
int i = 3;
char ch = 'a';
z.f(i, ch);
//z.f(i, i); // should not compile
}
int main()
{
test_Bill();
return 0;
}
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