cxx/test/strings/basic.string/string.capacity/resize_size_char.pass.cpp

80 lines
2.6 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.
//
//===----------------------------------------------------------------------===//
// <string>
// void resize(size_type n, charT c);
#include <string>
#include <stdexcept>
#include <cassert>
#include "../min_allocator.h"
template <class S>
void
test(S s, typename S::size_type n, typename S::value_type c, S expected)
{
try
{
s.resize(n, c);
assert(s.__invariants());
assert(n <= s.max_size());
assert(s == expected);
}
catch (std::length_error&)
{
assert(n > s.max_size());
}
}
int main()
{
{
typedef std::string S;
test(S(), 0, 'a', S());
test(S(), 1, 'a', S("a"));
test(S(), 10, 'a', S(10, 'a'));
test(S(), 100, 'a', S(100, 'a'));
test(S("12345"), 0, 'a', S());
test(S("12345"), 2, 'a', S("12"));
test(S("12345"), 5, 'a', S("12345"));
test(S("12345"), 15, 'a', S("12345aaaaaaaaaa"));
test(S("12345678901234567890123456789012345678901234567890"), 0, 'a', S());
test(S("12345678901234567890123456789012345678901234567890"), 10, 'a',
S("1234567890"));
test(S("12345678901234567890123456789012345678901234567890"), 50, 'a',
S("12345678901234567890123456789012345678901234567890"));
test(S("12345678901234567890123456789012345678901234567890"), 60, 'a',
S("12345678901234567890123456789012345678901234567890aaaaaaaaaa"));
test(S(), S::npos, 'a', S("not going to happen"));
}
#if __cplusplus >= 201103L
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test(S(), 0, 'a', S());
test(S(), 1, 'a', S("a"));
test(S(), 10, 'a', S(10, 'a'));
test(S(), 100, 'a', S(100, 'a'));
test(S("12345"), 0, 'a', S());
test(S("12345"), 2, 'a', S("12"));
test(S("12345"), 5, 'a', S("12345"));
test(S("12345"), 15, 'a', S("12345aaaaaaaaaa"));
test(S("12345678901234567890123456789012345678901234567890"), 0, 'a', S());
test(S("12345678901234567890123456789012345678901234567890"), 10, 'a',
S("1234567890"));
test(S("12345678901234567890123456789012345678901234567890"), 50, 'a',
S("12345678901234567890123456789012345678901234567890"));
test(S("12345678901234567890123456789012345678901234567890"), 60, 'a',
S("12345678901234567890123456789012345678901234567890aaaaaaaaaa"));
test(S(), S::npos, 'a', S("not going to happen"));
}
#endif
}