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ircd: Maintain data pointer of string_view's through various ops.

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This commit is contained in:
Jason Volk 2017-11-15 17:19:13 -08:00
parent 3680ae37f2
commit 7599c4bb6e
1 changed files with 9 additions and 3 deletions
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12
include/ircd/stringops.h
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@ -425,22 +425,28 @@ ircd::rstrip(const string_view &str,
return pos != string_view::npos? string_view{str.substr(0, pos + 1)} : str;
}
/// Remove leading instances of c from the returned view
/// Remove leading instances of c from the returned view.
/// Note in case the strip results in an empty view, we return a string_view
/// with the original pointer and size 0 so it carries through the defined().
inline ircd::string_view
ircd::lstrip(const string_view &str,
const char &c)
{
const auto pos(str.find_first_not_of(c));
return pos != string_view::npos? string_view{str.substr(pos)} : string_view{};
return pos != string_view::npos? string_view{str.substr(pos)}:
string_view{str.data(), size_t{0}};
}
/// Remove leading instances of c from the returned view
/// Note in case the strip results in an empty view, we return a string_view
/// with the original pointer and size 0 so it carries through the defined().
inline ircd::string_view
ircd::lstrip(const string_view &str,
const string_view &c)
{
const auto pos(str.find_first_not_of(c));
return pos != string_view::npos? string_view{str.substr(pos)} : string_view{};
return pos != string_view::npos? string_view{str.substr(pos)}:
string_view{str.data(), size_t{0}};
}
template<class T>