string_view parameters instead or in addition for functions
defined with char const * or string const & as parameter types.Section: 27.3 [string.view] Status: LEWG Submitter: Switzerland Opened: 2017-02-03 Last modified: 2017-07-15
Priority: Not Prioritized
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Discussion:
Addresses CH 9
The standard library should provide string_view parameters instead or in addition for functions defined with
char const * or string const & as parameter types. Most notably in cases where both such
overloads exist or where an internal copy is expected anyway.
It might be doubted that the non-null termination of string_view could be an issue with functions that pass
the char * down to OS functions, such as fstream_buf::open() etc. and those shouldn't provide it
and favour generating a std::string temporary instead in that case. However, std::path demonstrates
it is usable to have string_view overloads and there might be many places where it can be handy, or even better.
Proposed change: Provide the overloads for std::regex, the exception classes, std::bitset,
std::locale and more.
[Post-Kona 2017]
Most (all?) of these changes were proposed in P0506r1, which was discussed by LEWG in Kona.
[2017-07 Toronto Thurs Issue Prioritization]
Status LEWG - they're already looking at this.
Proposed resolution: