154 lines
3.0 KiB
C++
154 lines
3.0 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <algorithm>
|
|
|
|
// template<class Iter, IntegralLike Size, class T>
|
|
// requires OutputIterator<Iter, const T&>
|
|
// OutputIterator
|
|
// fill_n(Iter first, Size n, const T& value);
|
|
|
|
#include <algorithm>
|
|
#include <cassert>
|
|
|
|
#include "test_iterators.h"
|
|
|
|
template <class Iter>
|
|
void
|
|
test_char()
|
|
{
|
|
const unsigned n = 4;
|
|
char ca[n] = {0};
|
|
assert(std::fill_n(Iter(ca), n, char(1)) == std::next(Iter(ca), n));
|
|
assert(ca[0] == 1);
|
|
assert(ca[1] == 1);
|
|
assert(ca[2] == 1);
|
|
assert(ca[3] == 1);
|
|
}
|
|
|
|
template <class Iter>
|
|
void
|
|
test_int()
|
|
{
|
|
const unsigned n = 4;
|
|
int ia[n] = {0};
|
|
assert(std::fill_n(Iter(ia), n, 1) == std::next(Iter(ia), n));
|
|
assert(ia[0] == 1);
|
|
assert(ia[1] == 1);
|
|
assert(ia[2] == 1);
|
|
assert(ia[3] == 1);
|
|
}
|
|
|
|
void
|
|
test_int_array()
|
|
{
|
|
const unsigned n = 4;
|
|
int ia[n] = {0};
|
|
assert(std::fill_n(ia, n, static_cast<char>(1)) == std::next(ia, n));
|
|
assert(ia[0] == 1);
|
|
assert(ia[1] == 1);
|
|
assert(ia[2] == 1);
|
|
assert(ia[3] == 1);
|
|
}
|
|
|
|
struct source {
|
|
source() : i(0) { }
|
|
|
|
operator int() const { return i++; }
|
|
mutable int i;
|
|
};
|
|
|
|
void
|
|
test_int_array_struct_source()
|
|
{
|
|
const unsigned n = 4;
|
|
int ia[n] = {0};
|
|
assert(std::fill_n(ia, n, source()) == std::next(ia, n));
|
|
assert(ia[0] == 0);
|
|
assert(ia[1] == 1);
|
|
assert(ia[2] == 2);
|
|
assert(ia[3] == 3);
|
|
}
|
|
|
|
struct test1 {
|
|
test1() : c(0) { }
|
|
test1(char c) : c(c + 1) { }
|
|
char c;
|
|
};
|
|
|
|
void
|
|
test_struct_array()
|
|
{
|
|
const unsigned n = 4;
|
|
test1 test1a[n] = {0};
|
|
assert(std::fill_n(test1a, n, static_cast<char>(10)) == std::next(test1a, n));
|
|
assert(test1a[0].c == 11);
|
|
assert(test1a[1].c == 11);
|
|
assert(test1a[2].c == 11);
|
|
assert(test1a[3].c == 11);
|
|
}
|
|
|
|
class A
|
|
{
|
|
char a_;
|
|
public:
|
|
A() {}
|
|
explicit A(char a) : a_(a) {}
|
|
operator unsigned char() const {return 'b';}
|
|
|
|
friend bool operator==(const A& x, const A& y)
|
|
{return x.a_ == y.a_;}
|
|
};
|
|
|
|
void
|
|
test5()
|
|
{
|
|
A a[3];
|
|
assert(std::fill_n(&a[0], 3, A('a')) == a+3);
|
|
assert(a[0] == A('a'));
|
|
assert(a[1] == A('a'));
|
|
assert(a[2] == A('a'));
|
|
}
|
|
|
|
struct Storage
|
|
{
|
|
union
|
|
{
|
|
unsigned char a;
|
|
unsigned char b;
|
|
};
|
|
};
|
|
|
|
void test6()
|
|
{
|
|
Storage foo[5];
|
|
std::fill_n(&foo[0], 5, Storage());
|
|
}
|
|
|
|
|
|
int main()
|
|
{
|
|
test_char<forward_iterator<char*> >();
|
|
test_char<bidirectional_iterator<char*> >();
|
|
test_char<random_access_iterator<char*> >();
|
|
test_char<char*>();
|
|
|
|
test_int<forward_iterator<int*> >();
|
|
test_int<bidirectional_iterator<int*> >();
|
|
test_int<random_access_iterator<int*> >();
|
|
test_int<int*>();
|
|
|
|
test_int_array();
|
|
test_int_array_struct_source();
|
|
test_struct_array();
|
|
|
|
test5();
|
|
test6();
|
|
}
|