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bolero-MURAKAMI 2011-09-26 13:54:16 +09:00
parent 6e14e47ac6
commit b0ade6c043
1 changed files with 72 additions and 17 deletions
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89
sprout/string.hpp
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@ -108,24 +108,43 @@ namespace sprout {
SPROUT_STATIC_CONSTEXPR size_type npos = -1;
SPROUT_STATIC_CONSTEXPR size_type static_size = N;
SPROUT_STATIC_CONSTEXPR size_type fixed_size = static_size;
public:
T elems[N + 1];
size_type len;
private:
SPROUT_CONSTEXPR int compare_impl_2(int compared, size_type n1, size_type n2) const {
static SPROUT_CONSTEXPR int compare_impl_2(int compared, size_type n1, size_type n2) {
return compared != 0 ? compared
: n1 < n2 ? -1
: n2 < n1 ? 1
: 0
;
}
SPROUT_CONSTEXPR int compare_impl_1(size_type pos1, size_type n1, char const* s, size_type n2) const {
static SPROUT_CONSTEXPR int compare_impl_1(value_type const* dest, size_type pos1, size_type n1, value_type const* s, size_type n2) {
return compare_impl_2(
traits_type::compare(c_str() + pos1, s, NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(n1, n2)),
traits_type::compare(dest + pos1, s, NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(n1, n2)),
n1,
n2
);
}
template<std::ptrdiff_t...Indexes>
static SPROUT_CONSTEXPR basic_string<T, N, Traits> from_c_str_impl(
value_type const* s,
size_type n,
sprout::index_tuple<Indexes...>
)
{
return sprout::basic_string<T, N, Traits>{{(Indexes < n ? s[Indexes] : T())...}, n};
}
public:
static SPROUT_CONSTEXPR basic_string<T, N, Traits> from_c_str(value_type const* s, size_type n) {
return !(N < n)
? from_c_str_impl(s, n, typename sprout::index_range<0, N>::type())
: throw "basic_string<>: index out of range"
;
}
static SPROUT_CONSTEXPR basic_string<T, N, Traits> from_c_str(value_type const* s) {
return from_c_str(s, traits_type::length(s));
}
public:
T elems[N + 1];
size_type len;
public:
SPROUT_CONSTEXPR size_type size() const SPROUT_NOEXCEPT {
return len;
@ -144,6 +163,11 @@ namespace sprout {
throw std::out_of_range("basic_string<>: index out of range");
}
}
void maxcheck(size_type n) const {
if (n > max_size()) {
throw std::out_of_range("basic_string<>: index out of range");
}
}
iterator begin() SPROUT_NOEXCEPT {
return &elems[0];
}
@ -218,6 +242,21 @@ namespace sprout {
SPROUT_CONSTEXPR const_pointer c_str() const SPROUT_NOEXCEPT {
return &elems[0];
}
void resize(size_type n, value_type c) {
maxcheck(n);
if (n > size()) {
traits_type::assign(end(), n - size(), c);
}
traits_type::assign(begin() + n, max_size() - n, value_type());
len = n;
}
void resize(size_type n) {
resize(n, value_type());
}
void clear() {
traits_type::assign(begin(), max_size(), value_type());
len = 0;
}
template<std::size_t N2>
basic_string<T, N, Traits>& assign(basic_string<T, N2, Traits> const& str) {
return assign(str.begin(), str.size());
@ -230,9 +269,7 @@ namespace sprout {
return assign(str.begin() + pos, n);
}
basic_string<T, N, Traits>& assign(value_type const* s, size_type n) {
if (max_size() < n) {
throw std::out_of_range("basic_string<>: index out of range");
}
maxcheck(n);
for (size_type i = 0; i < n; ++i) {
traits_type::assign(elems[i], s[i]);
}
@ -246,9 +283,7 @@ namespace sprout {
return assign(s, traits_type::length(s));
}
basic_string<T, N, Traits>& assign(size_type n, value_type c) {
if (max_size() < n) {
throw std::out_of_range("basic_string<>: index out of range");
}
maxcheck(n);
traits_type::assign(begin(), n, c);
traits_type::assign(begin() + n, max_size() - n, value_type());
len = n;
@ -306,7 +341,15 @@ namespace sprout {
}
SPROUT_CONSTEXPR int compare(size_type pos1, size_type n1, char const* s, size_type n2) const {
return !(size() < pos1)
? compare_impl_1(pos1, NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(n1, size() - pos1), s, n2)
? compare_impl_1(c_str(), pos1, NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(n1, size() - pos1), s, n2)
: throw "basic_string<>: index out of range"
;
}
SPROUT_CONSTEXPR basic_string<T, N, Traits> substr(size_type pos = 0, size_type n = npos) const {
return !(size() < pos)
? n == npos
? substr(pos, size() - pos)
: from_c_str(c_str() + pos, n)
: throw "basic_string<>: index out of range"
;
}
@ -590,11 +633,11 @@ namespace sprout {
template<typename T, std::size_t N, std::ptrdiff_t...Indexes>
SPROUT_CONSTEXPR inline sprout::basic_string<T, N - 1> to_string_impl_1(
T const(& arr)[N],
sprout::index_tuple<Indexes...>,
typename sprout::basic_string<T, N - 1>::size_type len
typename sprout::basic_string<T, N - 1>::size_type n,
sprout::index_tuple<Indexes...>
)
{
return sprout::basic_string<T, N - 1>{{(Indexes < len ? arr[Indexes] : T())...}, len};
return sprout::basic_string<T, N - 1>{{(Indexes < n ? arr[Indexes] : T())...}, n};
}
template<typename T, std::size_t N, std::ptrdiff_t...Indexes>
SPROUT_CONSTEXPR inline sprout::basic_string<T, N - 1> to_string_impl(
@ -602,7 +645,7 @@ namespace sprout {
sprout::index_tuple<Indexes...>
)
{
return to_string_impl_1(arr, sprout::index_tuple<Indexes...>(), sprout::char_traits<T>::length(arr));
return to_string_impl_1(arr, sprout::char_traits<T>::length(arr), sprout::index_tuple<Indexes...>());
}
} // namespace detail
//
@ -613,6 +656,18 @@ namespace sprout {
return sprout::detail::to_string_impl(arr, typename sprout::index_range<0, N - 1>::type());
}
//
// string_from_c_str
//
template<std::size_t N, typename T>
SPROUT_CONSTEXPR inline sprout::basic_string<T, N> string_from_c_str(T const* s, std::size_t n) {
return sprout::basic_string<T, N>::from_c_str(s, n);
}
template<std::size_t N, typename T>
SPROUT_CONSTEXPR inline sprout::basic_string<T, N> string_from_c_str(T const* s) {
return sprout::basic_string<T, N>::from_c_str(s);
}
template<typename T, std::size_t N, typename Traits>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::push_back<sprout::basic_string<T, N, Traits>, T>::type operator+(
sprout::basic_string<T, N, Traits> const& lhs,