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ircd::util: Abstract stringstream utils into template; add view hack.

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This commit is contained in:
Jason Volk 2018-03-25 23:15:26 -07:00
parent e4194e3589
commit 15c65924ee
1 changed files with 35 additions and 8 deletions
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43
include/ircd/util/util.h
View file

@ -219,8 +219,18 @@ operator!(const std::string_view &str)
// stringstream buffer set macros
//
inline std::string &
pubsetbuf(std::stringstream &ss,
template<class stringstream>
stringstream &
pubsetbuf(stringstream &ss,
const mutable_buffer &buf)
{
ss.rdbuf()->pubsetbuf(data(buf), size(buf));
return ss;
}
template<class stringstream>
stringstream &
pubsetbuf(stringstream &ss,
std::string &s)
{
auto *const &data
@ -229,11 +239,12 @@ pubsetbuf(std::stringstream &ss,
};
ss.rdbuf()->pubsetbuf(data, s.size());
return s;
return ss;
}
inline std::string &
pubsetbuf(std::stringstream &ss,
template<class stringstream>
stringstream &
pubsetbuf(stringstream &ss,
std::string &s,
const size_t &size)
{
@ -241,12 +252,28 @@ pubsetbuf(std::stringstream &ss,
return pubsetbuf(ss, s);
}
inline std::string &
resizebuf(std::stringstream &ss,
template<class stringstream>
stringstream &
resizebuf(stringstream &ss,
std::string &s)
{
s.resize(ss.tellp());
return s;
return ss;
}
/// buf has to match the rdbuf you gave the stringstream
template<class stringstream>
string_view
view(stringstream &ss,
const const_buffer &buf)
{
assert(size_t(ss.tellp()) <= size(buf));
ss.flush();
ss.rdbuf()->pubsync();
return
{
data(buf), size_t(ss.tellp())
};
}
//