本文整理汇总了C++中sprout::basic_string::resize方法的典型用法代码示例。如果您正苦于以下问题:C++ basic_string::resize方法的具体用法?C++ basic_string::resize怎么用?C++ basic_string::resize使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sprout::basic_string
的用法示例。
在下文中一共展示了basic_string::resize方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: if
inline SPROUT_NON_CONSTEXPR std::basic_istream<T, StreamTraits>&
operator>>(std::basic_istream<T, StreamTraits>& lhs, sprout::basic_string<T, N, Traits>& rhs) {
typedef T elem_type;
typedef StreamTraits traits_type;
typedef std::basic_istream<T, StreamTraits> istream_type;
typedef sprout::basic_string<T, N, Traits> string_type;
typedef std::ctype<elem_type> ctype_type;
typedef typename string_type::size_type size_type;
std::ios_base::iostate state = std::ios_base::goodbit;
bool changed = false;
size_type current = 0;
if (typename istream_type::sentry(lhs)) {
ctype_type const& ctype_fac = std::use_facet<ctype_type>(lhs.getloc());
try {
size_type remain = 0 < lhs.width() && static_cast<size_type>(lhs.width()) < rhs.max_size()
? static_cast<size_type>(lhs.width())
: rhs.max_size()
;
typename traits_type::int_type meta = lhs.rdbuf()->sgetc();
for (; remain; --remain, meta = lhs.rdbuf()->snextc())
if (traits_type::eq_int_type(traits_type::eof(), meta)) {
state |= std::ios_base::eofbit;
break;
} else if (ctype_fac.is(ctype_type::space, traits_type::to_char_type(meta))) {
break;
} else {
rhs[current] = traits_type::to_char_type(meta);
changed = true;
++current;
}
} catch (...) {
state |= std::ios_base::badbit;
}
}
lhs.width(0);
if (!changed) {
state |= std::ios_base::failbit;
}
lhs.setstate(state);
rhs.resize(current);
return lhs;
}