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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <ostream>
// template <class charT, class traits = char_traits<charT> >
// class basic_ostream;
// operator<<( int16_t val);
// operator<<(uint16_t val);
// operator<<( int32_t val);
// operator<<(uint32_t val);
// operator<<( int64_t val);
// operator<<(uint64_t val);
// Testing to make sure that the max length values are correctly inserted
#include <sstream>
#include <ios>
#include <type_traits>
#include <cctype>
#include <cstdint>
#include <cassert>
#include "test_macros.h"
template <typename T>
void test_octal(const char *expected)
{
std::stringstream ss;
ss << std::oct << static_cast<T>(-1);
assert(ss.str() == expected);
}
template <typename T>
void test_dec(const char *expected)
{
std::stringstream ss;
ss << std::dec << static_cast<T>(-1);
assert(ss.str() == expected);
}
template <typename T>
void test_hex(const char *expected)
{
std::stringstream ss;
ss << std::hex << static_cast<T>(-1);
std::string str = ss.str();
for (std::size_t i = 0; i < str.size(); ++i )
str[i] = static_cast<char>(std::toupper(str[i]));
assert(str == expected);
}
int main(int, char**)
{
test_octal<std::uint16_t>( "177777");
test_octal< std::int16_t>( "177777");
test_octal<std::uint32_t>( "37777777777");
test_octal< std::int32_t>( "37777777777");
test_octal<std::uint64_t>("1777777777777777777777");
test_octal< std::int64_t>("1777777777777777777777");
test_octal<std::uint64_t>("1777777777777777777777");
const bool long_is_64 = std::integral_constant<bool, sizeof(long) == sizeof(std::int64_t)>::value; // avoid compiler warnings
const bool long_long_is_64 = std::integral_constant<bool, sizeof(long long) == sizeof(std::int64_t)>::value; // avoid compiler warnings
if (long_is_64) {
test_octal< unsigned long>("1777777777777777777777");
test_octal< long>("1777777777777777777777");
}
if (long_long_is_64) {
test_octal< unsigned long long>("1777777777777777777777");
test_octal< long long>("1777777777777777777777");
}
test_dec<std::uint16_t>( "65535");
test_dec< std::int16_t>( "-1");
test_dec<std::uint32_t>( "4294967295");
test_dec< std::int32_t>( "-1");
test_dec<std::uint64_t>("18446744073709551615");
test_dec< std::int64_t>( "-1");
if (long_is_64) {
test_dec<unsigned long>("18446744073709551615");
test_dec< long>( "-1");
}
if (long_long_is_64) {
test_dec<unsigned long long>("18446744073709551615");
test_dec< long long>( "-1");
}
test_hex<std::uint16_t>( "FFFF");
test_hex< std::int16_t>( "FFFF");
test_hex<std::uint32_t>( "FFFFFFFF");
test_hex< std::int32_t>( "FFFFFFFF");
test_hex<std::uint64_t>("FFFFFFFFFFFFFFFF");
test_hex< std::int64_t>("FFFFFFFFFFFFFFFF");
if (long_is_64) {
test_hex<unsigned long>("FFFFFFFFFFFFFFFF");
test_hex< long>("FFFFFFFFFFFFFFFF");
}
if (long_long_is_64) {
test_hex<unsigned long long>("FFFFFFFFFFFFFFFF");
test_hex< long long>("FFFFFFFFFFFFFFFF");
}
return 0;
}
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