forked from OSchip/llvm-project
127 lines
3.1 KiB
C++
127 lines
3.1 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>
|
|
|
|
// wstring to_wstring(int val);
|
|
// wstring to_wstring(unsigned val);
|
|
// wstring to_wstring(long val);
|
|
// wstring to_wstring(unsigned long val);
|
|
// wstring to_wstring(long long val);
|
|
// wstring to_wstring(unsigned long long val);
|
|
// wstring to_wstring(float val);
|
|
// wstring to_wstring(double val);
|
|
// wstring to_wstring(long double val);
|
|
|
|
#include <string>
|
|
#include <cassert>
|
|
#include <sstream>
|
|
|
|
template <class T>
|
|
void
|
|
test_signed()
|
|
{
|
|
{
|
|
std::wstring s = std::to_wstring(T(0));
|
|
assert(s.size() == 1);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"0");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(T(12345));
|
|
assert(s.size() == 5);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"12345");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(T(-12345));
|
|
assert(s.size() == 6);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"-12345");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(std::numeric_limits<T>::max());
|
|
assert(s.size() == std::numeric_limits<T>::digits10 + 1);
|
|
std::wistringstream is(s);
|
|
T t(0);
|
|
is >> t;
|
|
assert(t == std::numeric_limits<T>::max());
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(std::numeric_limits<T>::min());
|
|
std::wistringstream is(s);
|
|
T t(0);
|
|
is >> t;
|
|
assert(t == std::numeric_limits<T>::min());
|
|
}
|
|
}
|
|
|
|
template <class T>
|
|
void
|
|
test_unsigned()
|
|
{
|
|
{
|
|
std::wstring s = std::to_wstring(T(0));
|
|
assert(s.size() == 1);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"0");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(T(12345));
|
|
assert(s.size() == 5);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"12345");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(std::numeric_limits<T>::max());
|
|
assert(s.size() == std::numeric_limits<T>::digits10 + 1);
|
|
std::wistringstream is(s);
|
|
T t(0);
|
|
is >> t;
|
|
assert(t == std::numeric_limits<T>::max());
|
|
}
|
|
}
|
|
|
|
template <class T>
|
|
void
|
|
test_float()
|
|
{
|
|
{
|
|
std::wstring s = std::to_wstring(T(0));
|
|
assert(s.size() == 8);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"0.000000");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(T(12345));
|
|
assert(s.size() == 12);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"12345.000000");
|
|
}
|
|
{
|
|
std::wstring s = std::to_wstring(T(-12345));
|
|
assert(s.size() == 13);
|
|
assert(s[s.size()] == 0);
|
|
assert(s == L"-12345.000000");
|
|
}
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test_signed<int>();
|
|
test_signed<long>();
|
|
test_signed<long long>();
|
|
test_unsigned<unsigned>();
|
|
test_unsigned<unsigned long>();
|
|
test_unsigned<unsigned long long>();
|
|
test_float<float>();
|
|
test_float<double>();
|
|
test_float<long double>();
|
|
}
|