mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-23 21:25:49 +00:00
add atoi, atol, strtol
This commit is contained in:
bolero-MURAKAMI
parent
1968a6fac4
commit
50fd5f33bf
11 changed files with 307 additions and 55 deletions
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@ -2,7 +2,7 @@
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#define SPROUT_CSTDLIB_HPP
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#include <sprout/config.hpp>
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#include <sprout/cstdlib/abs.hpp>
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#include <sprout/cstdlib/div.hpp>
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#include <sprout/cstdlib/conversion.hpp>
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#include <sprout/cstdlib/arithmetic.hpp>
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#endif // #ifndef SPROUT_CSTDLIB_HPP
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8
sprout/cstdlib/arithmetic.hpp
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8
sprout/cstdlib/arithmetic.hpp
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@ -0,0 +1,8 @@
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#ifndef SPROUT_CSTDLIB_ARITHMETIC_HPP
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#define SPROUT_CSTDLIB_ARITHMETIC_HPP
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#include <sprout/config.hpp>
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#include <sprout/cstdlib/abs.hpp>
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#include <sprout/cstdlib/div.hpp>
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#endif // #ifndef SPROUT_CSTDLIB_ARITHMETIC_HPP
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20
sprout/cstdlib/atoi.hpp
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20
sprout/cstdlib/atoi.hpp
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@ -0,0 +1,20 @@
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#ifndef SPROUT_CSTDLIB_ATOI_HPP
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#define SPROUT_CSTDLIB_ATOI_HPP
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#include <sprout/config.hpp>
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#include <sprout/cstdlib/decimal_to_int.hpp>
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namespace sprout {
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//
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// atoi
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//
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inline SPROUT_CONSTEXPR int atoi(char const* str) {
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return sprout::decimal_to_int<int>(str);
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}
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template<typename Char>
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inline SPROUT_CONSTEXPR int atoi(Char const* str) {
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return sprout::decimal_to_int<int>(str);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTDLIB_ATOI_HPP
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20
sprout/cstdlib/atol.hpp
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20
sprout/cstdlib/atol.hpp
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@ -0,0 +1,20 @@
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#ifndef SPROUT_CSTDLIB_ATOL_HPP
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#define SPROUT_CSTDLIB_ATOL_HPP
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#include <sprout/config.hpp>
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#include <sprout/cstdlib/decimal_to_int.hpp>
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namespace sprout {
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//
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// atol
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//
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inline SPROUT_CONSTEXPR long atol(char const* str) {
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return sprout::decimal_to_int<long>(str);
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}
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template<typename Char>
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inline SPROUT_CONSTEXPR int atol(Char const* str) {
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return sprout::decimal_to_int<int>(str);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTDLIB_ATOL_HPP
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11
sprout/cstdlib/conversion.hpp
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11
sprout/cstdlib/conversion.hpp
Normal file
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@ -0,0 +1,11 @@
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#ifndef SPROUT_CSTDLIB_CONVERSION_HPP
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#define SPROUT_CSTDLIB_CONVERSION_HPP
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#include <sprout/config.hpp>
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#include <sprout/cstdlib/decimal_to_int.hpp>
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#include <sprout/cstdlib/str_to_int.hpp>
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#include <sprout/cstdlib/atoi.hpp>
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#include <sprout/cstdlib/atol.hpp>
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#include <sprout/cstdlib/strtol.hpp>
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#endif // #ifndef SPROUT_CSTDLIB_CONVERSION_HPP
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51
sprout/cstdlib/decimal_to_int.hpp
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51
sprout/cstdlib/decimal_to_int.hpp
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@ -0,0 +1,51 @@
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#ifndef SPROUT_CSTDLIB_DECIMAL_TO_INT_HPP
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#define SPROUT_CSTDLIB_DECIMAL_TO_INT_HPP
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#include <iterator>
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#include <limits>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/ctype/ascii.hpp>
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#include <sprout/utility/enabler_if.hpp>
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namespace sprout {
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namespace detail {
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// Copyright (c) 2011 osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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template<typename IntType, typename CStrIterator>
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inline SPROUT_CONSTEXPR IntType decimal_to_int_impl(CStrIterator str, IntType val, bool negative) {
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return !sprout::ascii::isdigit(*str)
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? negative ? -val : val
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: val > (std::numeric_limits<IntType>::max() - (*str - static_cast<typename std::iterator_traits<CStrIterator>::value_type>('0')) - (negative ? 1 : 0)) / 10
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? (negative ? std::numeric_limits<IntType>::min() : std::numeric_limits<IntType>::max())
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: sprout::detail::decimal_to_int_impl<IntType>(
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sprout::next(str),
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val * 10 + (*str - static_cast<typename std::iterator_traits<CStrIterator>::value_type>('0')),
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negative
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)
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;
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}
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template<typename IntType, typename CStrIterator>
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inline SPROUT_CONSTEXPR IntType decimal_to_int(CStrIterator str) {
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return sprout::ascii::isspace(*str)
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? sprout::detail::decimal_to_int<IntType>(sprout::next(str))
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: *str == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('-')
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? sprout::detail::decimal_to_int_impl<IntType>(sprout::next(str), IntType(), true)
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: *str == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('+')
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? sprout::detail::decimal_to_int_impl<IntType>(sprout::next(str), IntType(), false)
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: sprout::detail::decimal_to_int_impl<IntType>(str, IntType(), false)
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;
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}
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} // namespace detail
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//
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// decimal_to_int
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//
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template<typename IntType, typename Char, typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler>
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inline SPROUT_CONSTEXPR IntType decimal_to_int(Char const* str) {
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return sprout::detail::decimal_to_int<IntType>(str);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTDLIB_DECIMAL_TO_INT_HPP
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95
sprout/cstdlib/str_to_int.hpp
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95
sprout/cstdlib/str_to_int.hpp
Normal file
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@ -0,0 +1,95 @@
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#ifndef SPROUT_CSTDLIB_STR_TO_INT_HPP
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#define SPROUT_CSTDLIB_STR_TO_INT_HPP
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#include <cstddef>
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#include <cstdlib>
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#include <limits>
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/utility/enabler_if.hpp>
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#include <sprout/detail/char_conversion.hpp>
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namespace sprout {
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namespace detail {
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// Copyright (c) 2011 osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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template<typename IntType, typename CStrIterator>
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inline SPROUT_CONSTEXPR IntType str_to_int_impl_1(CStrIterator str, int base, IntType val, IntType x, bool negative) {
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return x == static_cast<IntType>(-1)
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? (negative ? -val : val)
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: val > (std::numeric_limits<IntType>::max() - x - (negative ? 1 : 0)) / base
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? (negative ? std::numeric_limits<IntType>::min() : std::numeric_limits<IntType>::max())
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: sprout::detail::str_to_int_impl_1<IntType>(
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sprout::next(str),
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base,
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val * base + x,
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sprout::detail::char_to_int<IntType>(*sprout::next(str), base),
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negative
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)
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;
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}
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template<typename IntType, typename CStrIterator>
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inline SPROUT_CONSTEXPR IntType str_to_int_impl(CStrIterator str, int base, bool negative) {
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return *str == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('0')
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? *sprout::next(str) == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('x')
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|| *sprout::next(str) == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('X')
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? sprout::detail::str_to_int_impl_1<IntType>(
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sprout::next(str, 2),
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base ? base : 16,
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IntType(),
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sprout::detail::char_to_int<IntType>(*sprout::next(str, 2), base),
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negative
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)
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: sprout::detail::str_to_int_impl_1<IntType>(
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sprout::next(str),
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base ? base : 8,
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IntType(),
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sprout::detail::char_to_int<IntType>(*sprout::next(str), base),
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negative
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)
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: sprout::detail::str_to_int_impl_1<IntType>(
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str,
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base ? base : 10,
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IntType(),
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sprout::detail::char_to_int<IntType>(*str, base),
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negative
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)
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;
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}
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template<typename IntType, typename CStrIterator>
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inline SPROUT_CONSTEXPR IntType str_to_int(CStrIterator str, int base) {
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return sprout::ascii::isspace(*str)
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? sprout::detail::str_to_int<IntType>(sprout::next(str), base)
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: *str == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('-')
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? sprout::detail::str_to_int_impl<IntType>(sprout::next(str), base, true)
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: *str == static_cast<typename std::iterator_traits<CStrIterator>::value_type>('+')
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? sprout::detail::str_to_int_impl<IntType>(sprout::next(str), base, false)
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: sprout::detail::str_to_int_impl<IntType>(str, base, false)
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;
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}
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template<typename IntType, typename CStrIterator, typename CharPtr>
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inline SPROUT_CONSTEXPR IntType str_to_int(CStrIterator str, CharPtr* endptr, int base) {
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return !endptr ? sprout::detail::str_to_int<IntType>(str, base)
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: std::strtol(str, endptr, base)
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;
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}
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} // namespace detail
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//
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// str_to_int
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//
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template<typename IntType, typename Char, typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler>
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inline SPROUT_CONSTEXPR IntType str_to_int(Char const* str, Char** endptr, int base = 10) {
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return sprout::detail::str_to_int<IntType>(str, endptr, base);
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}
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template<typename IntType, typename Char, typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler>
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inline SPROUT_CONSTEXPR IntType str_to_int(Char const* str, std::nullptr_t endptr, int base = 10) {
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return sprout::detail::str_to_int<IntType>(str, base);
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}
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template<typename IntType, typename Char, typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler>
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inline SPROUT_CONSTEXPR IntType str_to_int(Char const* str, int base = 10) {
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return sprout::detail::str_to_int<IntType>(str, base);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTDLIB_STR_TO_INT_HPP
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29
sprout/cstdlib/strtol.hpp
Normal file
29
sprout/cstdlib/strtol.hpp
Normal file
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@ -0,0 +1,29 @@
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#ifndef SPROUT_CSTDLIB_STRTOL_HPP
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#define SPROUT_CSTDLIB_STRTOL_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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#include <sprout/cstdlib/str_to_int.hpp>
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namespace sprout {
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//
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// strtol
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//
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inline SPROUT_CONSTEXPR long strtol(char const* str, char** endptr, int base = 10){
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return sprout::str_to_int<long>(str, endptr, base);
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}
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template<typename Char>
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inline SPROUT_CONSTEXPR long strtol(Char const* str, Char** endptr, int base = 10){
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return sprout::str_to_int<long>(str, endptr, base);
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}
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template<typename Char>
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inline SPROUT_CONSTEXPR long strtol(Char const* str, std::nullptr_t endptr, int base = 10){
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return sprout::str_to_int<long>(str, base);
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}
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template<typename Char>
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inline SPROUT_CONSTEXPR long strtol(Char const* str, int base = 10){
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return sprout::str_to_int<long>(str, base);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTDLIB_STRTOL_HPP
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41
sprout/detail/char_conversion.hpp
Normal file
41
sprout/detail/char_conversion.hpp
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@ -0,0 +1,41 @@
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#ifndef SPROUT_DETAIL_CHAR_CONVERSION_HPP
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#define SPROUT_DETAIL_CHAR_CONVERSION_HPP
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#include <cstddef>
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#include <stdexcept>
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#include <sprout/config.hpp>
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namespace sprout {
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namespace detail {
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template<typename Elem, typename IntType>
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inline SPROUT_CONSTEXPR Elem int_to_char(IntType val, std::size_t base){
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return val >= 0 && val < 10 ? static_cast<Elem>('0') + val
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: val >= 10 && val < base ? static_cast<Elem>('a') + (val - 10)
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: throw std::invalid_argument("value out of bounds")
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;
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}
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template<typename Elem, typename IntType>
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inline SPROUT_CONSTEXPR Elem int_to_char(IntType val){
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return val >= 0 && val < 10 ? static_cast<Elem>('0') + val
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: throw std::invalid_argument("value out of bounds")
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;
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}
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template<typename IntType, typename Elem>
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inline SPROUT_CONSTEXPR IntType char_to_int(Elem c, std::size_t base){
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return c >= static_cast<Elem>('0') && c <= static_cast<Elem>('9') ? c - static_cast<Elem>('0')
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: c >= static_cast<Elem>('a') && c <= static_cast<Elem>('a' + (base - 11)) ? c - static_cast<Elem>('a') + 10
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: c >= static_cast<Elem>('A') && c <= static_cast<Elem>('A' + (base - 11)) ? c - static_cast<Elem>('A') + 10
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: static_cast<IntType>(-1)
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;
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}
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template<typename IntType, typename Elem>
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inline SPROUT_CONSTEXPR IntType char_to_int(Elem c){
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return c >= static_cast<Elem>('0') && c <= static_cast<Elem>('9') ? c - static_cast<Elem>('0')
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: static_cast<IntType>(-1)
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;
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}
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} // namespace detail
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} // namespace sprout
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#endif // #ifndef SPROUT_DETAIL_CHAR_CONVERSION_HPP
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#define SPROUT_STRING_TO_STRING_HPP
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#include <cstddef>
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#include <stdexcept>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/string/string.hpp>
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#include <sprout/string/make_string.hpp>
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#include <sprout/integer/integer_digits.hpp>
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#include <sprout/utility/enabler_if.hpp>
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#include <sprout/detail/char_conversion.hpp>
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namespace sprout {
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namespace detail {
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template<
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typename Elem,
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std::size_t Base,
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typename IntType,
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typename sprout::enabler_if<(Base < 10)>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR Elem int_to_char(IntType val){
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return val >= 0 && val < 10 ? static_cast<Elem>('0') + val
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: throw std::invalid_argument("value out of bounds")
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;
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}
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template<
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typename Elem,
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std::size_t Base,
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typename IntType,
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typename sprout::enabler_if<(Base >= 10 && Base < 36)>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR Elem int_to_char(IntType val){
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return val >= 0 && val < 10 ? static_cast<Elem>('0') + val
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: val >= 10 && val < 36 ? static_cast<Elem>('a') + (val - 10)
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: throw std::invalid_argument("value out of bounds")
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;
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}
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template<
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typename Elem,
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std::size_t Base,
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@ -64,7 +41,7 @@ namespace sprout {
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: sprout::detail::int_to_string_impl_1<Elem, Base>(
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val / Base,
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negative,
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sprout::detail::int_to_char<Elem, Base>(val % Base),
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sprout::detail::int_to_char<Elem>(val % Base, Base),
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args...
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)
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;
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@ -102,7 +79,7 @@ namespace sprout {
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? sprout::make_string_as<Elem>(args...)
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: sprout::detail::uint_to_string_impl_1<Elem, Base>(
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val / Base,
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sprout::detail::int_to_char<Elem, Base>(val % Base),
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sprout::detail::int_to_char<Elem>(val % Base, Base),
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args...
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)
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;
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