r268687 - in /branches/gcc-8-branch/libstdc++-v...

[redi@gcc.gnu.org]

Author: redi
Date: Fri Feb  8 12:38:42 2019
New Revision: 268687

URL: https://gcc.gnu.org/viewcvs?rev=268687&root=gcc&view=rev
Log:
PR libstdc++/83511 add default argument to basic_string_view::substr

Backport from mainline
2018-11-28  Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/83511
	* include/std/string_view (basic_string_view::substr): Add default
	argument to first parameter.
	* include/experimental/string_view (basic_string_view::substr):
	Likewise.
	* testsuite/21_strings/basic_string_view/operations/substr/char/
	83511.cc: New test.
	* testsuite/21_strings/basic_string_view/operations/substr/wchar_t/
	83511.cc: New test.
	* testsuite/experimental/string_view/operations/substr/char/83511.cc:
	New test.
	* testsuite/experimental/string_view/operations/substr/wchar_t/83511.cc:
	New test.

Added:
    branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/substr/char/83511.cc
    branches/gcc-8-branch/libstdc++-v3/testsuite/21_strings/basic_string_view/operations/substr/wchar_t/83511.cc
    branches/gcc-8-branch/libstdc++-v3/testsuite/experimental/string_view/operations/substr/char/83511.cc
    branches/gcc-8-branch/libstdc++-v3/testsuite/experimental/string_view/operations/substr/wchar_t/83511.cc
Modified:
    branches/gcc-8-branch/libstdc++-v3/ChangeLog
    branches/gcc-8-branch/libstdc++-v3/include/experimental/string_view
    branches/gcc-8-branch/libstdc++-v3/include/std/string_view