http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59529
Bug ID: 59529
Summary: fix experimental/string_view end-of-string edge cases
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: bigotp at acm dot org
Created attachment 31448
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31448&action=edit
Patch and test update
Per http://isocpp.org/files/papers/N3762.html#string.view.ops, for a given
string_view sv:
stringview sv{"text"};
auto rv = sv.substr(sv.size());
rv should be a string view starting at sv.end() with size zero. In the current
implementation this code improperly raises std::out_of_range.
Related to this, basic_string_view constructors with length zero and a valid
str should not be re-mapped to the internal empty string.
