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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.
//
//===----------------------------------------------------------------------===//
// XFAIL: libcpp-no-exceptions
// <string>
// void reserve(size_type res_arg=0);
#include <string>
#include <stdexcept>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
void
test(S s)
{
typename S::size_type old_cap = s.capacity();
S s0 = s;
s.reserve();
LIBCPP_ASSERT(s.__invariants());
assert(s == s0);
assert(s.capacity() <= old_cap);
assert(s.capacity() >= s.size());
}
template <class S>
void
test(S s, typename S::size_type res_arg)
{
typename S::size_type old_cap = s.capacity();
S s0 = s;
try
{
s.reserve(res_arg);
assert(res_arg <= s.max_size());
assert(s == s0);
assert(s.capacity() >= res_arg);
assert(s.capacity() >= s.size());
}
catch (std::length_error&)
{
assert(res_arg > s.max_size());
}
}
int main()
{
{
typedef std::string S;
{
S s;
test(s);
s.assign(10, 'a');
s.erase(5);
test(s);
s.assign(100, 'a');
s.erase(50);
test(s);
}
{
S s;
test(s, 5);
test(s, 10);
test(s, 50);
}
{
S s(100, 'a');
s.erase(50);
test(s, 5);
test(s, 10);
test(s, 50);
test(s, 100);
test(s, S::npos);
}
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
{
S s;
test(s);
s.assign(10, 'a');
s.erase(5);
test(s);
s.assign(100, 'a');
s.erase(50);
test(s);
}
{
S s;
test(s, 5);
test(s, 10);
test(s, 50);
}
{
S s(100, 'a');
s.erase(50);
test(s, 5);
test(s, 10);
test(s, 50);
test(s, 100);
test(s, S::npos);
}
}
#endif
}
|
