/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
// Determine whether std::ostream operator << for sal_Unicode* (aka char16_t*) is deleted (see // <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1423r3.html> "char8_t backward // compatibility remediation", as implemented now by // <https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=0c5b35933e5b150df0ab487efb2f11ef5685f713> // "libstdc++: P1423R3 char8_t remediation (2/4)" for -std=c++2a; TODO: the checks here and the // relevant code in loplugin:getstr should eventually be removed once support for the deleted // operators is widespread): #if __cplusplus > 201703L \
&& (defined __GLIBCXX__ || defined _MSC_VER \
|| (defined _LIBCPP_VERSION && _LIBCPP_VERSION >= 16000)) #define HAVE_DELETED_OPERATORS true #else #define HAVE_DELETED_OPERATORS false #endif
using S = OString;
void f(std::ostream& st, OString const& s1, OStringBuffer const& s2,
OUString const& s3[[maybe_unused]], OUStringBuffer const& s4[[maybe_unused]], S const& s5,
OString* p1, OStringBuffer* p2, OUString* p3[[maybe_unused]],
OUStringBuffer* p4[[maybe_unused]], S* p5, charconst* (OString::*pf)() const)
{
st << s1.getStr() // expected-error-re {{directly use object of type '{{(rtl::)?}}OString' in a call of 'operator <<', instead of calling 'getStr' first [loplugin:getstr]}}
<< s2.getStr() #if !HAVE_DELETED_OPERATORS
<< s3.getStr() // expected-error-re {{suspicious use of 'getStr' on an object of type '{{(rtl::)?}}OUString'; the result is implicitly cast to a void pointer in a call of 'operator <<' [loplugin:getstr]}}
<< s4.getStr() // expected-error-re {{suspicious use of 'getStr' on an object of type '{{(rtl::)?}}OUStringBuffer'; the result is implicitly cast to a void pointer in a call of 'operator <<' [loplugin:getstr]}} #endif
<< s5.getStr() // expected-error {{directly use object of type 'S' (aka 'rtl::OString') in a call of 'operator <<', instead of calling 'getStr' first [loplugin:getstr]}}
<< p1->getStr() // expected-error {{directly use object of type 'rtl::OString' in a call of 'operator <<', instead of calling 'getStr' first [loplugin:getstr]}}
<< p2->getStr() #if !HAVE_DELETED_OPERATORS
<< p3->getStr() // expected-error {{suspicious use of 'getStr' on an object of type 'rtl::OUString'; the result is implicitly cast to a void pointer in a call of 'operator <<' [loplugin:getstr]}}
<< p4->getStr() // expected-error {{suspicious use of 'getStr' on an object of type 'rtl::OUStringBuffer'; the result is implicitly cast to a void pointer in a call of 'operator <<' [loplugin:getstr]}} #endif
<< p5->getStr() // expected-error {{directly use object of type 'rtl::OString' in a call of 'operator <<', instead of calling 'getStr' first [loplugin:getstr]}}
<< (s1.*pf)();
SAL_INFO( // expected-error-re 1+ {{directly use object of type '{{(rtl::)?}}OString' in a call of 'operator <<', instead of calling 'getStr' first [loplugin:getstr]}} "test", s1.getStr());
}
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