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static_string.cpp
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//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
// Copyright (c) 2019-2020 Krystian Stasiowski (sdkrystian at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/static_string
//
// Test that header file is self-contained.
#include <boost/static_string.hpp>
#include "constexpr_tests.hpp"
#include "compile_fail.hpp"
#include <boost/core/lightweight_test.hpp>
#include <boost/core/ignore_unused.hpp>
#include <cstdlib>
#include <cwchar>
#include <cctype>
#include <sstream>
#include <string>
namespace boost {
namespace static_strings {
template class basic_static_string<420, char>;
#ifdef BOOST_STATIC_STRING_HAS_ANY_STRING_VIEW
using string_view = basic_string_view<char, std::char_traits<char>>;
#endif
#ifdef BOOST_STATIC_STRING_HAS_ANY_STRING_VIEW
using string_like = basic_string_view<char, std::char_traits<char>>;
#else
using string_like = std::string;
#endif
template <class S>
bool
testS(const S& s, typename S::size_type pos, typename S::size_type n)
{
if (pos <= s.size())
{
S str = s.substr(pos, n);
typename S::size_type rlen = (std::min)(n, s.size() - pos);
return (S::traits_type::compare(s.data() + pos, str.data(), rlen) == 0);
}
else
{
BOOST_TEST_THROWS((s.substr(pos, n)), std::out_of_range);
return true;
}
}
template <class S>
bool
testSV(const S& s, typename S::size_type pos, typename S::size_type n)
{
if (pos <= s.size())
{
#ifdef BOOST_STATIC_STRING_HAS_ANY_STRING_VIEW
typename S::string_view_type str = s.subview(pos, n);
#else
auto str = s.substr(pos, n);
#endif
typename S::size_type rlen = (std::min)(n, s.size() - pos);
return (S::traits_type::compare(s.data() + pos, str.data(), rlen) == 0);
}
else
{
#ifdef BOOST_STATIC_STRING_HAS_ANY_STRING_VIEW
BOOST_TEST_THROWS((s.subview(pos, n)), std::out_of_range);
#else
BOOST_TEST_THROWS((s.substr(pos, n)), std::out_of_range);
#endif
return true;
}
}
template <class S>
bool
testAS(S s, const typename S::value_type* str, typename S::size_type n, S expected)
{
s.assign(str, n);
return s == expected;
}
template <class S>
bool
testI(S s, typename S::size_type pos, const typename S::value_type* str, typename S::size_type n, S expected)
{
const typename S::size_type old_size = s.size();
if (pos <= old_size)
{
s.insert(pos, str, n);
return s == expected;
}
else
{
BOOST_TEST_THROWS((s.insert(pos, str, n)), std::out_of_range);
return true;
}
}
template <class S>
bool
testE(S s, typename S::size_type pos, typename S::size_type n, S expected)
{
const typename S::size_type old_size = s.size();
if (pos <= old_size)
{
s.erase(pos, n);
return s[s.size()] == typename S::value_type() && s == expected;
}
else
{
BOOST_TEST_THROWS(s.erase(pos, n), std::out_of_range);
return true;
}
}
template <class S>
bool
testA(S s, const typename S::value_type* str, typename S::size_type n, S expected)
{
return s.append(str, n) == expected;
}
int
sign(int x)
{
if (x == 0)
return 0;
if (x < 0)
return -1;
return 1;
}
template <class S>
bool
testC(const S& s, typename S::size_type pos, typename S::size_type n1, const typename S::value_type* str, typename S::size_type n2, int x)
{
if (pos <= s.size())
return sign(s.compare(pos, n1, str, n2)) == sign(x);
else
{
BOOST_TEST_THROWS(s.compare(pos, n1, str, n2), std::out_of_range);
return true;
}
}
template <class S>
bool
testF(const S& s, const typename S::value_type* str, typename S::size_type pos, typename S::size_type n, typename S::size_type x)
{
return s.find(str, pos, n) == x;
}
template <class S>
bool
testRF(const S& s, const typename S::value_type* str, typename S::size_type pos, typename S::size_type n, typename S::size_type x)
{
return s.rfind(str, pos, n) == x;
}
template <class S>
bool
testFF(const S& s, const typename S::value_type* str, typename S::size_type pos, typename S::size_type n, typename S::size_type x)
{
return s.find_first_of(str, pos, n) == x;
}
template <class S>
bool
testFL(const S& s, const typename S::value_type* str, typename S::size_type pos, typename S::size_type n, typename S::size_type x)
{
return s.find_last_of(str, pos, n) == x;
}
template <class S>
bool
testFFN(const S& s, const typename S::value_type* str, typename S::size_type pos, typename S::size_type n, typename S::size_type x)
{
return s.find_first_not_of(str, pos, n) == x;
}
template <class S>
bool
testFLN(const S& s, const typename S::value_type* str, typename S::size_type pos, typename S::size_type n, typename S::size_type x)
{
return s.find_last_not_of(str, pos, n) == x;
}
template <class S>
bool
testR(S s, typename S::size_type pos1, typename S::size_type n1, const typename S::value_type* str, S expected)
{
typename S::const_iterator first = s.begin() + pos1;
typename S::const_iterator last = s.begin() + pos1 + n1;
s.replace(first, last, str);
return s == expected;
}
template <class S>
bool
testR(S s, typename S::size_type pos, typename S::size_type n1, typename S::size_type n2, typename S::value_type c, S expected)
{
const typename S::size_type old_size = s.size();
if (pos <= old_size)
{
s.replace(pos, n1, n2, c);
return s == expected;
}
else
{
BOOST_TEST_THROWS((s.replace(pos, n1, n2, c)), std::out_of_range);
return true;
}
}
template <class S>
bool
testR(S s, typename S::size_type pos, typename S::size_type n1, const typename S::value_type* str, typename S::size_type n2, S expected)
{
const typename S::size_type old_size = s.size();
S s0 = s;
if (n1 > old_size)
s.size();
if (pos <= old_size)
{
if (pos + n1 > s0.size())
// this is a precondition violation for the const_iterator overload
return s.replace(pos, n1, str, n2) == expected;
else
return s.replace(pos, n1, str, n2) == expected &&
s0.replace(s0.begin() + pos, s0.begin() + pos + n1, str, str + n2) == expected;
}
else
{
BOOST_TEST_THROWS((s.replace(pos, n1, str, n2)), std::out_of_range);
return true;
}
}
template<typename Arithmetic>
bool
testTS(Arithmetic value, const char* str_expected = "", const wchar_t* wstr_expected = L"", bool test_expected = false)
{
const auto str = to_static_string(value);
const auto wstr = to_static_wstring(value);
if (std::is_floating_point<Arithmetic>::value)
{
const auto std_res = std::to_string(value);
const auto wstd_res = std::to_wstring(value);
return str == std_res.data() && wstr == wstd_res.data();
}
else
{
if (std::is_signed<Arithmetic>::value)
{
return Arithmetic(std::strtoll(str.begin(), nullptr, 10)) == value &&
Arithmetic(std::wcstoll(wstr.begin(), nullptr, 10)) == value &&
(test_expected ? str == str_expected && wstr == wstr_expected : true);
}
else
{
return Arithmetic(std::strtoull(str.begin(), nullptr, 10)) == value &&
Arithmetic(std::wcstoull(wstr.begin(), nullptr, 10)) == value &&
(test_expected ? str == str_expected && wstr == wstr_expected : true);
}
}
}
// done
static
void
testConstruct()
{
{
static_string<1> s;
BOOST_TEST(s.empty());
BOOST_TEST(s.size() == 0);
BOOST_TEST(s == "");
BOOST_TEST(*s.end() == 0);
}
{
static_string<4> s1(3, 'x');
BOOST_TEST(! s1.empty());
BOOST_TEST(s1.size() == 3);
BOOST_TEST(s1 == "xxx");
BOOST_TEST(*s1.end() == 0);
BOOST_TEST_THROWS(
(static_string<2>(3, 'x')),
std::length_error);
}
{
static_string<5> s1("12345");
BOOST_TEST(*s1.end() == 0);
static_string<3> s2(s1, 2);
BOOST_TEST(s2 == "345");
BOOST_TEST(*s2.end() == 0);
static_string<0> s3(s1, 5);
BOOST_TEST(s3.empty());
BOOST_TEST(s3.front() == 0);
BOOST_TEST(*s3.end() == 0);
}
{
static_string<5> s1("12345");
static_string<2> s2(s1, 1, 2);
BOOST_TEST(s2 == "23");
BOOST_TEST(*s2.end() == 0);
static_string<0> s3(s1, 5, 1);
BOOST_TEST(s3.empty());
BOOST_TEST(s3.front() == 0);
BOOST_TEST(*s3.end() == 0);
BOOST_TEST_THROWS(
(static_string<5>(s1, 6)),
std::out_of_range);
}
{
static_string<5> s1("UVXYZ", 3);
BOOST_TEST(s1 == "UVX");
BOOST_TEST(*s1.end() == 0);
static_string<5> s2("X\0""Y\0""Z", 3);
BOOST_TEST(std::memcmp(
s2.data(), "X\0""Y", 3) == 0);
BOOST_TEST(*s2.end() == 0);
}
{
static_string<5> s1("12345");
static_string<3> s2(
s1.begin() + 1, s1.begin() + 3);
BOOST_TEST(s2 == "23");
BOOST_TEST(*s2.end() == 0);
}
{
static_string<5> s1("12345");
static_string<5> s2(s1);
BOOST_TEST(s2 == "12345");
BOOST_TEST(*s2.end() == 0);
static_string<6> s3(s1);
BOOST_TEST(s3 == "12345");
BOOST_TEST(*s3.end() == 0);
BOOST_TEST_THROWS(
(static_string<4>(s1)),
std::length_error);
}
{
static_string<3> s1({'1', '2', '3'});
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
BOOST_TEST(
static_string<0>({}) == static_string<0>());
BOOST_TEST_THROWS(
(static_string<2>({'1', '2', '3'})),
std::length_error);
}
{
static_string<3> s1(
string_like("123"));
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
BOOST_TEST_THROWS(
(static_string<2>(string_like("123"))),
std::length_error);
}
{
static_string<5> s1(
std::string("12345"), 2, 2);
BOOST_TEST(s1 == "34");
BOOST_TEST(*s1.end() == 0);
BOOST_TEST_THROWS(
(static_string<2>(std::string("12345"), 1, 3)),
std::length_error);
}
{
BOOST_TEST_THROWS(static_string<5>("12345678"), std::length_error);
}
}
//done
static
void
testAssignment()
{
// assign(size_type count, CharT ch)
BOOST_TEST(static_string<3>{}.assign(1, '*') == "*");
BOOST_TEST(static_string<3>{}.assign(3, '*') == "***");
BOOST_TEST(static_string<3>{"abc"}.assign(3, '*') == "***");
BOOST_TEST_THROWS(static_string<1>{"a"}.assign(2, '*'), std::length_error);
// assign(static_string const& s) noexcept
BOOST_TEST(static_string<3>{}.assign(static_string<3>{"abc"}) == "abc");
BOOST_TEST(static_string<3>{"*"}.assign(static_string<3>{"abc"}) == "abc");
BOOST_TEST(static_string<3>{"***"}.assign(static_string<3>{"abc"}) == "abc");
// assign(static_string<M, CharT, Traits> const& s)
BOOST_TEST(static_string<3>{}.assign(static_string<5>{"abc"}) == "abc");
BOOST_TEST(static_string<3>{"*"}.assign(static_string<5>{"abc"}) == "abc");
BOOST_TEST(static_string<3>{"***"}.assign(static_string<5>{"abc"}) == "abc");
{
static_string<3> s("***");
BOOST_TEST(s.assign(s) == s);
}
BOOST_TEST_THROWS(static_string<3>{}.assign(static_string<5>{"abcde"}), std::length_error);
// assign(static_string<M, CharT, Traits> const& s, size_type pos, size_type count = npos)
BOOST_TEST(static_string<4>{}.assign(static_string<5>{"abcde"}, 1) == "bcde");
BOOST_TEST(static_string<3>{}.assign(static_string<5>{"abcde"}, 1, 3) == "bcd");
BOOST_TEST(static_string<3>{"*"}.assign(static_string<5>{"abcde"}, 1, 3) == "bcd");
BOOST_TEST(static_string<3>{"***"}.assign(static_string<5>{"abcde"}, 1, 3) == "bcd");
BOOST_TEST_THROWS(static_string<3>{}.assign(static_string<5>{"abcde"}, 0), std::length_error);
// assign(CharT const* s, size_type count)
BOOST_TEST(static_string<3>{}.assign("abc", 3) == "abc");
BOOST_TEST(static_string<3>{"*"}.assign("abc", 3) == "abc");
BOOST_TEST_THROWS(static_string<1>{}.assign("abc", 3), std::length_error);
// assign(CharT const* s)
BOOST_TEST(static_string<3>{}.assign("abc") == "abc");
BOOST_TEST(static_string<3>{"*"}.assign("abc") == "abc");
BOOST_TEST_THROWS(static_string<1>{}.assign("abc"), std::length_error);
// assign(InputIt first, InputIt last)
{
static_string<4> const cs{"abcd"};
static_string<4> s{"ad"};
BOOST_TEST(static_string<4>{}.assign(cs.begin(), cs.end()) == "abcd");
BOOST_TEST(static_string<4>{"*"}.assign(cs.begin(), cs.end()) == "abcd");
BOOST_TEST_THROWS(static_string<2>{"*"}.assign(cs.begin(), cs.end()), std::length_error);
ignore_unused(s);
}
// assign(std::initializer_list<CharT> ilist)
BOOST_TEST(static_string<3>{}.assign({'a', 'b', 'c'}) == "abc");
BOOST_TEST(static_string<3>{"*"}.assign({'a', 'b', 'c'}) == "abc");
BOOST_TEST(static_string<3>{"***"}.assign({'a', 'b', 'c'}) == "abc");
BOOST_TEST_THROWS(static_string<1>{}.assign({'a', 'b', 'c'}), std::length_error);
// assign(T const& t)
{
#ifdef BOOST_STATIC_STRING_HAS_ANY_STRING_VIEW
struct T
{
operator string_view() const noexcept
{
return "abc";
}
};
#else
struct T
{
char const* data() const noexcept
{
static char p[] = "abc";
return p;
}
std::size_t size() const noexcept
{
return 3;
}
};
#endif
BOOST_TEST(static_string<3>{}.assign(T{}) == "abc");
BOOST_TEST(static_string<3>{"*"}.assign(T{}) == "abc");
BOOST_TEST(static_string<3>{"***"}.assign(T{}) == "abc");
BOOST_TEST_THROWS(static_string<2>{"**"}.assign(T{}), std::length_error);
}
// assign(T const& t, size_type pos, size_type count = npos)
{
#ifdef BOOST_STATIC_STRING_HAS_ANY_STRING_VIEW
struct T
{
operator string_view() const noexcept
{
return "abcde";
}
};
#else
struct T
{
char const*
data() const noexcept
{
static char p[] = "abcde";
return p;
}
std::size_t
size() const
{
return 5;
}
};
#endif
BOOST_TEST(static_string<5>{}.assign(T{}, 0) == "abcde");
BOOST_TEST(static_string<5>{}.assign(T{}, 0, 5) == "abcde");
BOOST_TEST(static_string<5>{}.assign(T{}, 1, 3) == "bcd");
BOOST_TEST(static_string<5>{"*"}.assign(T{}, 1) == "bcde");
BOOST_TEST_THROWS(static_string<2>{"**"}.assign(T{}, 6, 3), std::out_of_range);
BOOST_TEST_THROWS(static_string<2>{"**"}.assign(T{}, 1, 3), std::length_error);
}
//---
{
static_string<3> s1("123");
static_string<3> s2;
s2 = s1;
BOOST_TEST(s2 == "123");
BOOST_TEST(*s2.end() == 0);
}
{
static_string<3> s1("123");
static_string<5> s2;
s2 = s1;
BOOST_TEST(s2 == "123");
BOOST_TEST(*s2.end() == 0);
static_string<1> s3;
BOOST_TEST_THROWS(
s3 = s1,
std::length_error);
}
{
static_string<3> s1;
s1 = "123";
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
static_string<1> s2;
BOOST_TEST_THROWS(
s2 = "123",
std::length_error);
}
{
static_string<1> s1;
s1 = 'x';
BOOST_TEST(s1 == "x");
BOOST_TEST(*s1.end() == 0);
static_string<0> s2;
BOOST_TEST_THROWS(
s2 = 'x',
std::length_error);
}
{
static_string<3> s1;
s1 = {'1', '2', '3'};
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
static_string<1> s2;
BOOST_TEST_THROWS(
(s2 = {'1', '2', '3'}),
std::length_error);
}
{
static_string<3> s1;
s1 = string_like("123");
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
static_string<1> s2;
BOOST_TEST_THROWS(
s2 = string_like("123"),
std::length_error);
}
{
static_string<4> s1;
s1.assign(3, 'x');
BOOST_TEST(s1 == "xxx");
BOOST_TEST(*s1.end() == 0);
static_string<2> s2;
BOOST_TEST_THROWS(
s2.assign(3, 'x'),
std::length_error);
}
{
static_string<5> s1("12345");
BOOST_TEST(*s1.end() == 0);
static_string<5> s2;
s2.assign(s1);
BOOST_TEST(s2 == "12345");
BOOST_TEST(*s2.end() == 0);
}
{
static_string<5> s1("12345");
BOOST_TEST(*s1.end() == 0);
static_string<7> s2;
s2.assign(s1);
BOOST_TEST(s2 == "12345");
BOOST_TEST(*s2.end() == 0);
static_string<3> s3;
BOOST_TEST_THROWS(
s3.assign(s1),
std::length_error);
}
{
static_string<5> s1("12345");
static_string<5> s2;
s2.assign(s1, 1);
BOOST_TEST(s2 == "2345");
BOOST_TEST(*s2.end() == 0);
s2.assign(s1, 1, 2);
BOOST_TEST(s2 == "23");
BOOST_TEST(*s2.end() == 0);
s2.assign(s1, 1, 100);
BOOST_TEST(s2 == "2345");
BOOST_TEST(*s2.end() == 0);
BOOST_TEST_THROWS(
(s2.assign(s1, 6)),
std::out_of_range);
static_string<3> s3;
BOOST_TEST_THROWS(
s3.assign(s1, 1),
std::length_error);
}
{
static_string<5> s1;
s1.assign("12");
BOOST_TEST(s1 == "12");
BOOST_TEST(*s1.end() == 0);
s1.assign("12345");
BOOST_TEST(s1 == "12345");
BOOST_TEST(*s1.end() == 0);
}
{
static_string<5> s1;
s1.assign("12345", 3);
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
}
{
static_string<5> s1("12345");
static_string<3> s2;
s2.assign(s1.begin(), s1.begin() + 2);
BOOST_TEST(s2 == "12");
BOOST_TEST(*s2.end() == 0);
BOOST_TEST_THROWS(
(s2.assign(s1.begin(), s1.end())),
std::length_error);
}
{
static_string<5> s1;
s1.assign({'1', '2', '3'});
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
static_string<1> s2;
BOOST_TEST_THROWS(
(s2.assign({'1', '2', '3'})),
std::length_error);
}
{
static_string<5> s1;
s1.assign(string_like("123"));
BOOST_TEST(s1 == "123");
BOOST_TEST(*s1.end() == 0);
s1.assign(string_like("12345"));
BOOST_TEST(s1 == "12345");
BOOST_TEST(*s1.end() == 0);
BOOST_TEST_THROWS(
s1.assign(string_like("1234567")),
std::length_error);
}
{
static_string<5> s1;
s1.assign(std::string("12345"), 2, 2);
BOOST_TEST(s1 == "34");
BOOST_TEST(*s1.end() == 0);
s1.assign(std::string("12345"), 3);
BOOST_TEST(s1 == "45");
BOOST_TEST(*s1.end() == 0);
static_string<2> s2;
BOOST_TEST_THROWS(
(s2.assign(std::string("12345"), 1, 3)),
std::length_error);
}
using S = static_string<400>;
BOOST_TEST(testAS(S(), "", 0, S()));
BOOST_TEST(testAS(S(), "12345", 3, S("123")));
BOOST_TEST(testAS(S(), "12345", 4, S("1234")));
BOOST_TEST(testAS(S(), "12345678901234567890", 0, S()));
BOOST_TEST(testAS(S(), "12345678901234567890", 1, S("1")));
BOOST_TEST(testAS(S(), "12345678901234567890", 3, S("123")));
BOOST_TEST(testAS(S(), "12345678901234567890", 20, S("12345678901234567890")));
BOOST_TEST(testAS(S("12345"), "", 0, S()));
BOOST_TEST(testAS(S("12345"), "12345", 5, S("12345")));
BOOST_TEST(testAS(S("12345"), "1234567890", 10, S("1234567890")));
BOOST_TEST(testAS(S("12345678901234567890"), "", 0, S()));
BOOST_TEST(testAS(S("12345678901234567890"), "12345", 5, S("12345")));
BOOST_TEST(testAS(S("12345678901234567890"), "12345678901234567890", 20,
S("12345678901234567890")));
BOOST_TEST(testAS(S(), "", 0, S()));
BOOST_TEST(testAS(S(), "12345", 3, S("123")));
BOOST_TEST(testAS(S(), "12345", 4, S("1234")));
BOOST_TEST(testAS(S(), "12345678901234567890", 0, S()));
BOOST_TEST(testAS(S(), "12345678901234567890", 1, S("1")));
BOOST_TEST(testAS(S(), "12345678901234567890", 3, S("123")));
BOOST_TEST(testAS(S(), "12345678901234567890", 20, S("12345678901234567890")));
BOOST_TEST(testAS(S("12345"), "", 0, S()));
BOOST_TEST(testAS(S("12345"), "12345", 5, S("12345")));
BOOST_TEST(testAS(S("12345"), "1234567890", 10, S("1234567890")));
BOOST_TEST(testAS(S("12345678901234567890"), "", 0, S()));
BOOST_TEST(testAS(S("12345678901234567890"), "12345", 5, S("12345")));
BOOST_TEST(testAS(S("12345678901234567890"), "12345678901234567890", 20,
S("12345678901234567890")));
S s_short = "123/";
S s_long = "Lorem ipsum dolor sit amet, consectetur/";
s_short.assign(s_short.data(), s_short.size());
BOOST_TEST(s_short == "123/");
s_short.assign(s_short.data() + 2, s_short.size() - 2);
BOOST_TEST(s_short == "3/");
s_long.assign(s_long.data(), s_long.size());
BOOST_TEST(s_long == "Lorem ipsum dolor sit amet, consectetur/");
s_long.assign(s_long.data() + 2, 8);
BOOST_TEST(s_long == "rem ipsu");
// issue #41
{
boost::static_strings::static_string<0> a;
auto b = a;
BOOST_TEST(b == "");
}
}
// done
static
void
testElements()
{
using cfs3 = static_string<3> const;
// at(size_type pos)
BOOST_TEST(static_string<3>{"abc"}.at(0) == 'a');
BOOST_TEST(static_string<3>{"abc"}.at(2) == 'c');
BOOST_TEST_THROWS(static_string<3>{""}.at(0), std::out_of_range);
BOOST_TEST_THROWS(static_string<3>{"abc"}.at(4), std::out_of_range);
// at(size_type pos) const
BOOST_TEST(cfs3{"abc"}.at(0) == 'a');
BOOST_TEST(cfs3{"abc"}.at(2) == 'c');
BOOST_TEST_THROWS(cfs3{""}.at(0), std::out_of_range);
BOOST_TEST_THROWS(cfs3{"abc"}.at(4), std::out_of_range);
// operator[](size_type pos)
BOOST_TEST(static_string<3>{"abc"}[0] == 'a');
BOOST_TEST(static_string<3>{"abc"}[2] == 'c');
BOOST_TEST(static_string<3>{"abc"}[3] == 0);
BOOST_TEST(static_string<3>{""}[0] == 0);
// operator[](size_type pos) const
BOOST_TEST(cfs3{"abc"}[0] == 'a');
BOOST_TEST(cfs3{"abc"}[2] == 'c');
BOOST_TEST(cfs3{"abc"}[3] == 0);
BOOST_TEST(cfs3{""}[0] == 0);
// front()
BOOST_TEST(static_string<3>{"a"}.front() == 'a');
BOOST_TEST(static_string<3>{"abc"}.front() == 'a');
// front() const
BOOST_TEST(cfs3{"a"}.front() == 'a');
BOOST_TEST(cfs3{"abc"}.front() == 'a');
// back()
BOOST_TEST(static_string<3>{"a"}.back() == 'a');
BOOST_TEST(static_string<3>{"abc"}.back() == 'c');
// back() const
BOOST_TEST(cfs3{"a"}.back() == 'a');
BOOST_TEST(cfs3{"abc"}.back() == 'c');
// data() noexcept
// data() const noexcept
// c_str() const noexcept
// operator string_view_type() const noexcept
//---
{
static_string<5> s("12345");
BOOST_TEST(s.at(1) == '2');
BOOST_TEST(s.at(4) == '5');
BOOST_TEST_THROWS(
s.at(5) = 0,
std::out_of_range);
}
{
static_string<5> const s("12345");
BOOST_TEST(s.at(1) == '2');
BOOST_TEST(s.at(4) == '5');
BOOST_TEST_THROWS(
s.at(5),
std::out_of_range);
}
{
static_string<5> s("12345");
BOOST_TEST(s[1] == '2');
BOOST_TEST(s[4] == '5');
s[1] = '_';
BOOST_TEST(s == "1_345");
}
{
static_string<5> const s("12345");
BOOST_TEST(s[1] == '2');
BOOST_TEST(s[4] == '5');
BOOST_TEST(s[5] == 0);
}
{
static_string<3> s("123");
BOOST_TEST(s.front() == '1');
BOOST_TEST(s.back() == '3');
s.front() = '_';
BOOST_TEST(s == "_23");
s.back() = '_';
BOOST_TEST(s == "_2_");
}
{
static_string<3> const s("123");
BOOST_TEST(s.front() == '1');
BOOST_TEST(s.back() == '3');
}
{
static_string<3> s("123");
BOOST_TEST(std::memcmp(
s.data(), "123", 3) == 0);
}
{
static_string<3> const s("123");
BOOST_TEST(std::memcmp(
s.data(), "123", 3) == 0);
}
{
static_string<3> s("123");
BOOST_TEST(std::memcmp(
s.c_str(), "123\0", 4) == 0);
}
#ifdef BOOST_STATIC_ASSERT_HAS_STRING_VIEW
{
static_string<3> s("123");
string_view sv = s;
BOOST_TEST(static_string<5>(sv) == "123");
}
#endif
#ifdef BOOST_STATIC_ASSERT_HAS_STD_STRING_VIEW
{
static_string<3> s("123");
std::string_view sv = s;
BOOST_TEST(static_string<5>(sv) == "123");
}
#endif
}
// done
static
void
testIterators()
{
{
static_string<3> s;
BOOST_TEST(std::distance(s.begin(), s.end()) == 0);
BOOST_TEST(std::distance(s.rbegin(), s.rend()) == 0);
s = "123";
BOOST_TEST(std::distance(s.begin(), s.end()) == 3);
BOOST_TEST(std::distance(s.rbegin(), s.rend()) == 3);
}
{
static_string<3> const s("123");
BOOST_TEST(std::distance(s.begin(), s.end()) == 3);
BOOST_TEST(std::distance(s.cbegin(), s.cend()) == 3);
BOOST_TEST(std::distance(s.rbegin(), s.rend()) == 3);
BOOST_TEST(std::distance(s.crbegin(), s.crend()) == 3);
}
}
// done
static
void
testCapacity()
{
// empty()
BOOST_TEST(static_string<0>{}.empty());
BOOST_TEST(static_string<1>{}.empty());
BOOST_TEST(! static_string<1>{"a"}.empty());
BOOST_TEST(! static_string<3>{"abc"}.empty());
// size()
BOOST_TEST(static_string<0>{}.size() == 0);
BOOST_TEST(static_string<1>{}.size() == 0);
BOOST_TEST(static_string<1>{"a"}.size() == 1);
BOOST_TEST(static_string<3>{"abc"}.size() == 3);
BOOST_TEST(static_string<5>{"abc"}.size() == 3);
// length()
BOOST_TEST(static_string<0>{}.length() == 0);
BOOST_TEST(static_string<1>{}.length() == 0);
BOOST_TEST(static_string<1>{"a"}.length() == 1);
BOOST_TEST(static_string<3>{"abc"}.length() == 3);
BOOST_TEST(static_string<5>{"abc"}.length() == 3);
// max_size()
BOOST_TEST(static_string<0>{}.max_size() == 0);
BOOST_TEST(static_string<1>{}.max_size() == 1);
BOOST_TEST(static_string<1>{"a"}.max_size() == 1);
BOOST_TEST(static_string<3>{"abc"}.max_size() == 3);
BOOST_TEST(static_string<5>{"abc"}.max_size() == 5);
// reserve(std::size_t n)
static_string<3>{}.reserve(0);
static_string<3>{}.reserve(1);
static_string<3>{}.reserve(3);
BOOST_TEST_THROWS(static_string<0>{}.reserve(1), std::length_error);
BOOST_TEST_THROWS(static_string<3>{}.reserve(4), std::length_error);
// capacity()
BOOST_TEST(static_string<0>{}.capacity() == 0);
BOOST_TEST(static_string<1>{}.capacity() == 1);
BOOST_TEST(static_string<1>{"a"}.capacity() == 1);
BOOST_TEST(static_string<3>{"abc"}.capacity() == 3);
BOOST_TEST(static_string<5>{"abc"}.capacity() == 5);
//---
static_string<3> s;
BOOST_TEST(s.empty());
BOOST_TEST(s.size() == 0);
BOOST_TEST(s.length() == 0);
BOOST_TEST(s.max_size() == 3);
BOOST_TEST(s.capacity() == 3);
s = "123";
BOOST_TEST(! s.empty());
BOOST_TEST(s.size() == 3);
BOOST_TEST(s.length() == 3);
s.reserve(0);
s.reserve(3);
BOOST_TEST_THROWS(
s.reserve(4),
std::length_error);
s.shrink_to_fit();
BOOST_TEST(! s.empty());
BOOST_TEST(s.size() == 3);
BOOST_TEST(s.length() == 3);
BOOST_TEST(*s.end() == 0);
}
// done
static
void
testClear()
{
// clear()
static_string<3> s("123");
s.clear();
BOOST_TEST(s.empty());
BOOST_TEST(*s.end() == 0);
}
#if defined(__GNUC__) && __GNUC__ >= 8
#pragma GCC diagnostic push // false positives
#pragma GCC diagnostic ignored "-Wstringop-overflow"
#endif
// done
static
void
testInsert()
{
using sv = string_like;
using S = static_string<100>;
// insert(size_type index, size_type count, CharT ch)
// The overload resolution is ambiguous
// here because 0 is also a pointer type
//BOOST_TEST(static_string<3>{"bc"}.insert(0, 1, 'a') == "abc");
BOOST_TEST(static_string<3>{"bc"}.insert(std::size_t(0), 1, 'a') == "abc");
BOOST_TEST(static_string<3>{"ac"}.insert(1, 1, 'b') == "abc");
BOOST_TEST(static_string<3>{"ab"}.insert(2, 1, 'c') == "abc");
BOOST_TEST_THROWS(static_string<4>{"abc"}.insert(4, 1, '*'), std::out_of_range);
BOOST_TEST_THROWS(static_string<3>{"abc"}.insert(1, 1, '*'), std::length_error);
// insert(size_type index, CharT const* s)
BOOST_TEST(static_string<3>{"bc"}.insert(0, "a") == "abc");
BOOST_TEST_THROWS(static_string<4>{"abc"}.insert(4, "*"), std::out_of_range);
BOOST_TEST_THROWS(static_string<3>{"abc"}.insert(1, "*"), std::length_error);
// insert(size_type index, CharT const* s, size_type count)
BOOST_TEST(static_string<4>{"ad"}.insert(1, "bcd", 2) == "abcd");
BOOST_TEST_THROWS(static_string<4>{"abc"}.insert(4, "*"), std::out_of_range);
BOOST_TEST_THROWS(static_string<3>{"abc"}.insert(1, "*"), std::length_error);
// insert(size_type index, string_view_type sv)