Files
libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F.pass.cpp
Nico Weber 28db4445e2 libcxx: Rename .hpp files in libcxx/test/support to .h
LLVM uses .h as its extension for header files.

Files renamed using:

    for f in libcxx/test/support/*.hpp; do git mv $f ${f%.hpp}.h; done

References to the files updated using:

    for f in $(git diff master | grep 'rename from' | cut -f 3 -d ' '); do
        a=$(basename $f);
        echo $a;
        rg -l $a libcxx | xargs sed -i '' "s/$a/${a%.hpp}.h/";
    done

HPP include guards updated manually using:

    for f in $(git diff master | grep 'rename from' | cut -f 3 -d ' '); do
      echo ${f%.hpp}.h ;
    done | xargs mvim

Differential Revision: https://reviews.llvm.org/D66104

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@369481 91177308-0d34-0410-b5e6-96231b3b80d8
2019-08-21 00:14:12 +00:00

117 lines
2.7 KiB
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <functional>
// class function<R(ArgTypes...)>
// function(F);
#include <functional>
#include <cassert>
#include "test_macros.h"
#include "count_new.h"
class A
{
int data_[10];
public:
static int count;
A()
{
++count;
for (int i = 0; i < 10; ++i)
data_[i] = i;
}
A(const A&) {++count;}
~A() {--count;}
int operator()(int i) const
{
for (int j = 0; j < 10; ++j)
i += data_[j];
return i;
}
int foo(int) const {return 1;}
};
int A::count = 0;
int g(int) {return 0;}
#if TEST_STD_VER >= 11
struct RValueCallable {
template <class ...Args>
void operator()(Args&&...) && {}
};
struct LValueCallable {
template <class ...Args>
void operator()(Args&&...) & {}
};
#endif
int main(int, char**)
{
assert(globalMemCounter.checkOutstandingNewEq(0));
{
std::function<int(int)> f = A();
assert(A::count == 1);
assert(globalMemCounter.checkOutstandingNewEq(1));
assert(f.target<A>());
assert(f.target<int(*)(int)>() == 0);
}
assert(A::count == 0);
assert(globalMemCounter.checkOutstandingNewEq(0));
{
std::function<int(int)> f = g;
assert(globalMemCounter.checkOutstandingNewEq(0));
assert(f.target<int(*)(int)>());
assert(f.target<A>() == 0);
}
assert(globalMemCounter.checkOutstandingNewEq(0));
{
std::function<int(int)> f = (int (*)(int))0;
assert(!f);
assert(globalMemCounter.checkOutstandingNewEq(0));
assert(f.target<int(*)(int)>() == 0);
assert(f.target<A>() == 0);
}
{
std::function<int(const A*, int)> f = &A::foo;
assert(f);
assert(globalMemCounter.checkOutstandingNewEq(0));
assert(f.target<int (A::*)(int) const>() != 0);
}
{
std::function<void(int)> f(&g);
assert(f);
assert(f.target<int(*)(int)>() != 0);
f(1);
}
{
std::function <void()> f(static_cast<void (*)()>(0));
assert(!f);
}
#if TEST_STD_VER >= 11
{
using Fn = std::function<void(int, int, int)>;
static_assert(std::is_constructible<Fn, LValueCallable&>::value, "");
static_assert(std::is_constructible<Fn, LValueCallable>::value, "");
static_assert(!std::is_constructible<Fn, RValueCallable&>::value, "");
static_assert(!std::is_constructible<Fn, RValueCallable>::value, "");
}
#endif
return 0;
}