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From 8a7f364afd86a4c4c2c747ae9cb4216fe992acc8 Mon Sep 17 00:00:00 2001
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From: David Malcolm <dmalcolm@redhat.com>
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Date: Wed, 25 Aug 2021 12:36:42 -0400
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Subject: [PATCH 01/17] basic_string::reserve(n) semantics are not available in
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DTS
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Various tests were added upstream 2020-08-06 as part of:
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"libstdc++: Implement P0966 std::string::reserve should not shrink"
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https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=140cf935cd118f7208b7c3826a8b9d50936242f0
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std::string and std::wstring are instantiated in the system libstdc++.so
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via explicit instantiation definitions, so the new basic_string::reserve(n)
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semantics are not available in DTS.
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Update/disable the pertinent parts of the tests to reflect the behavior
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when run against the system libstdc++.so.
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---
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.../testsuite/21_strings/basic_string/capacity/char/1.cc | 6 ------
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.../21_strings/basic_string/capacity/char/18654.cc | 2 +-
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.../testsuite/21_strings/basic_string/capacity/wchar_t/1.cc | 6 ------
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.../21_strings/basic_string/capacity/wchar_t/18654.cc | 2 +-
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4 files changed, 2 insertions(+), 14 deletions(-)
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diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/1.cc
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index eea69771f..64187718d 100644
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--- a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/1.cc
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+++ b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/1.cc
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@@ -41,12 +41,6 @@ void test01()
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sz01 = str01.capacity();
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VERIFY( sz01 < sz02 );
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- // P0966: reserve should not shrink
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- str01.reserve(100);
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- sz01 = str01.capacity();
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- str01.reserve(sz01 - 1);
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- VERIFY( str01.capacity() == sz01 );
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-
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sz01 = str01.size() + 5;
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str01.resize(sz01);
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sz02 = str01.size();
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diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/18654.cc b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/18654.cc
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index 02ce78ea6..3a7352123 100644
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--- a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/18654.cc
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+++ b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/char/18654.cc
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@@ -51,7 +51,7 @@ void test01()
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VERIFY( cap >= 3 * i );
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str.reserve(2 * i);
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- VERIFY( str.capacity() == cap );
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+ VERIFY( str.capacity() == 2 * i );
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#if __cplusplus <= 201703L
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str.reserve();
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diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/1.cc b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/1.cc
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index f01a27e8c..70915a94d 100644
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--- a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/1.cc
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+++ b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/1.cc
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@@ -41,12 +41,6 @@ void test01()
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sz01 = str01.capacity();
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VERIFY( sz01 < sz02 );
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- // P0966: reserve should not shrink
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- str01.reserve(100);
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- sz01 = str01.capacity();
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- str01.reserve(sz01 - 1);
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- VERIFY( str01.capacity() == sz01 );
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-
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sz01 = str01.size() + 5;
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str01.resize(sz01);
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sz02 = str01.size();
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diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc
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index 267fd198b..c9711a294 100644
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--- a/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc
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+++ b/libstdc++-v3/testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc
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@@ -51,7 +51,7 @@ void test01()
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VERIFY( cap >= 3 * i );
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str.reserve(2 * i);
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- VERIFY( str.capacity() == cap );
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+ VERIFY( str.capacity() == 2 * i );
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#if __cplusplus <= 201703L
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str.reserve();
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--
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2.31.1
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