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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <functional>
// class function<R(ArgTypes...)>
// R operator()(ArgTypes... args) const
#include <functional>
#include <cassert>
// 0 args, return int
int count = 0;
int f_int_0()
{
return 3;
}
struct A_int_0
{
int operator()() {return 4;}
};
void
test_int_0()
{
// function
{
std::function<int ()> r1(f_int_0);
assert(r1() == 3);
}
// function pointer
{
int (*fp)() = f_int_0;
std::function<int ()> r1(fp);
assert(r1() == 3);
}
// functor
{
A_int_0 a0;
std::function<int ()> r1(a0);
assert(r1() == 4);
}
}
int main()
{
test_int_0();
}
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