本文整理汇总了C++中std::basic_string::capacity方法的典型用法代码示例。如果您正苦于以下问题：C++ basic_string::capacity方法的具体用法？C++ basic_string::capacity怎么用？C++ basic_string::capacity使用的例子？那么恭喜您, 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std::basic_string的用法示例。
在下文中一共展示了basic_string::capacity方法的3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: overflow
virtual typename base::int_type
overflow(typename base::int_type __c = base::traits_type::eof())
{
if (__c != base::traits_type::eof())
{
int n = static_cast<int>(str_.size());
str_.push_back(static_cast<CharT>(__c));
str_.resize(str_.capacity());
base::setp(const_cast<CharT*>(str_.data()),
const_cast<CharT*>(str_.data() + str_.size()));
base::pbump(n+1);
}
return __c;
}示例2: overflow
virtual typename base::int_type
overflow(typename base::int_type ch = base::traits_type::eof())
{
if (ch != base::traits_type::eof())
{
std::size_t n = str_.size();
str_.push_back(static_cast<CharT>(ch));
str_.resize(str_.capacity());
base::setp(const_cast<CharT*>(str_.data()),
const_cast<CharT*>(str_.data() + str_.size()));
base::pbump(static_cast<int>(n+1));
}
return ch;
}示例3: serializeString
inline void serializeString(SF::Archive & ar, std::basic_string<C,T,A> & s)
{
if (ar.isRead())
{
boost::uint32_t count = 0;
ar & count;
SF::IStream &is = *ar.getIstream();
s.resize(0);
std::size_t minSerializedLength = sizeof(C);
if (ar.verifyAgainstArchiveSize(count*minSerializedLength))
{
if (count > s.capacity())
{
s.reserve(count);
}
}
boost::uint32_t charsRemaining = count;
const boost::uint32_t BufferSize = 512;
C buffer[BufferSize];
while (charsRemaining)
{
boost::uint32_t charsToRead = RCF_MIN(BufferSize, charsRemaining);
boost::uint32_t bytesToRead = charsToRead*sizeof(C);
RCF_VERIFY(
is.read( (char *) buffer, bytesToRead) == bytesToRead,
RCF::Exception(RCF::_SfError_ReadFailure()))
(bytesToRead)(BufferSize)(count);
s.append(buffer, charsToRead);
charsRemaining -= charsToRead;
}
}
else if (ar.isWrite())
{
boost::uint32_t count = static_cast<boost::uint32_t >(s.length());
ar & count;
ar.getOstream()->writeRaw(
(char *) s.c_str(),
count*sizeof(C));
}
}