summaryrefslogtreecommitdiff
path: root/include/streambuf
AgeCommit message (Collapse)Author
2017-09-12Make pbump (internally) handle sizes bigger than MAX_INT. Fixes PR#33725 - ↵Marshall Clow
thanks to Jonathan Wakely for the report git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@313031 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-24make sure that we don't call basic_streambuf::gbump with a value bigger than ↵Marshall Clow
INT_MAX, since it only takes an int. Related to, but not quite the same as PR33725 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@308880 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-31[Libc++] Use #pragma push_macro/pop_macro to better handle min/max on WindowsEric Fiselier
Summary: This patch improves how libc++ handles min/max macros within the headers. Previously libc++ would undef them and emit a warning. This patch changes libc++ to use `#pragma push_macro` to save the macro before undefining it, and `#pragma pop_macro` to restore the macros and the end of the header. Reviewers: mclow.lists, bcraig, compnerd, EricWF Reviewed By: EricWF Subscribers: cfe-commits, krytarowski Differential Revision: https://reviews.llvm.org/D33080 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@304357 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-04Add markup for libc++ dylib availabilityMehdi Amini
Libc++ is used as a system library on macOS and iOS (amongst others). In order for users to be able to compile a binary that is intended to be deployed to an older version of the platform, clang provides the availability attribute <https://clang.llvm.org/docs/AttributeReference.html#availability>_ that can be placed on declarations to describe the lifecycle of a symbol in the library. See docs/DesignDocs/AvailabilityMarkup.rst for more information. Differential Revision: https://reviews.llvm.org/D31739 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302172 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-04[NFC] Rename _LIBCPP_TYPE_VIS_ONLY to _LIBCPP_TEMPLATE_VISEric Fiselier
The name _LIBCPP_TYPE_VIS_ONLY is no longer accurate because both _LIBCPP_TYPE_VIS and _LIBCPP_TYPE_VIS_ONLY expand to __attribute__((__type_visibility__)) with Clang. The only remaining difference is that _LIBCPP_TYPE_VIS_ONLY can be applied to templates whereas _LIBCPP_TYPE_VIS cannot (due to dllimport/dllexport not being allowed on templates). This patch renames _LIBCPP_TYPE_VIS_ONLY to _LIBCPP_TEMPLATE_VIS. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291035 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-16[libc++] Add _LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY to support GCC ABI ↵Eric Fiselier
compatibility Summary: GCC and Clang handle visibility attributes on the out-of-line definition of externally instantiated templates differently. For example in the reproducer below Clang will emit both 'foo' and 'bar' with default visibility while GCC only emits a non-hidden 'foo'. ``` // RUN: g++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out // RUN: clang++ -std=c++11 -shared -O3 test.cpp && sym_extract.py a.out #define INLINE_VISIBILITY __attribute__((visibility("hidden"), always_inline)) template <class T> struct Foo { void foo(); void bar(); }; template <class T> void Foo<T>::foo() {} template <class T> inline INLINE_VISIBILITY void Foo<T>::bar() {} template struct Foo<int>; ``` This difference creates ABI incompatibilities between Clang and GCC built dylibs. Specifically GCC built dylibs lack definitions for various member functions of `basic_string`, `basic_istream`, `basic_ostream`, `basic_iostream`, and `basic_streambuf` (All of these types are externally instantiated). Surprisingly these missing symbols don't cause many problems because the functions are marked `always_inline` therefore the dylib definition is rarely needed. However when an out-of-line definition is required then GCC built dylibs will fail to link. For example [GCC built dylibs cannot build Clang](http://stackoverflow.com/questions/39454262/clang-build-errors). This patch works around this issue by adding `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` which is used to mark externally instantiated member functions as always inline. When building the library `_LIBCPP_EXTERN_TEMPLATE_INLINE_VISIBILITY` sets the symbol's visibility to "default" instead of "hidden", otherwise it acts exactly the same as `_LIBCPP_INLINE_VISIBILITY`. After applying this patch GCC dylibs now contain: * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7sungetcEv` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5gbumpEi` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7sungetcEv` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9sputbackcEc` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERNS_15basic_streambufIwS2_EE` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_9basic_iosIwS2_EES6_E` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setpEPcS4_` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6snextcEv` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE4swapERS3_` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE4swapERS3_` * `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcm` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_8ios_baseES5_E` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE9pubsetbufEPcl` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekoffExNS_8ios_base7seekdirEj` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_9basic_iosIwS2_EES6_E` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5pbumpEi` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpENS_4fposI11__mbstate_tEE` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE7getlineEPcl` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetcEv` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERNS_15basic_streambufIcS2_EE` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_8ios_baseES5_E` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8in_availEv` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRNS_8ios_baseES5_E` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE6sbumpcEv` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRNS_9basic_iosIcS2_EES6_E` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getERc` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6snextcEv` * `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEmw` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE7getlineEPwl` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5tellpEv` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getERw` * `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEmc` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE7pubsyncEv` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEE3getEPcl` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRNS_9basic_iosIcS2_EES6_E` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE7pubsyncEv` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputcEc` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpExNS_8ios_base7seekdirE` * `_ZNKSt3__115basic_streambufIcNS_11char_traitsIcEEE6getlocEv` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5gbumpEi` * `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEE4swapERS3_` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5seekpENS_4fposI11__mbstate_tEE` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE5tellpEv` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRS3_S4_E` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEE3getEPwl` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEElsEPFRS3_S4_E` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE4setgEPcS4_S4_` * `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwmm` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setgEPwS4_S4_` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEEC1EPNS_15basic_streambufIwS2_EE` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE8pubimbueERKNS_6localeE` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE4swapERS3_` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEEC2EPNS_15basic_streambufIwS2_EE` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekposENS_4fposI11__mbstate_tEEj` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5pbumpEi` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetcEv` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEE4swapERS3_` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE10pubseekposENS_4fposI11__mbstate_tEEj` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKcl` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE5seekpExNS_8ios_base7seekdirE` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sgetnEPwl` * `_ZNSt3__113basic_ostreamIwNS_11char_traitsIwEEElsEPFRNS_8ios_baseES5_E` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE4setpEPwS4_` * `_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sgetnEPcl` * `_ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv` * `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8pubimbueERKNS_6localeE` * `_ZNSt3__114basic_iostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE8in_availEv` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE` * `_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcmm` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE6sbumpcEv` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE10pubseekoffExNS_8ios_base7seekdirEj` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC2EPNS_15basic_streambufIcS2_EE` * `_ZNSt3__113basic_istreamIwNS_11char_traitsIwEEErsEPFRS3_S4_E` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9sputbackcEw` * `_ZNSt3__112basic_stringIwNS_11char_traitsIwEENS_9allocatorIwEEE6__initEPKwm` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputnEPKwl` * `_ZNSt3__113basic_istreamIcNS_11char_traitsIcEEErsEPFRS3_S4_E` * `_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEEC1EPNS_15basic_streambufIcS2_EE` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE9pubsetbufEPwl` * `_ZNSt3__115basic_streambufIwNS_11char_traitsIwEEE5sputcEw` This patch has no effect on Clang based builds. Reviewers: mclow.lists, eugenis, danalbert, jroelofs, EricWF Subscribers: beanz, cfe-commits, mgorny Differential Revision: https://reviews.llvm.org/D24600 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281681 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-15[libc++] Fix and document visibility attributes for Clang, GCC and Windows.Eric Fiselier
Summary: This patch fixes a number of problems with the visibility macros across GCC (on Unix) and Windows (DLL import/export semantics). All of the visibility macros are now documented under `DesignDocs/VisibilityMacros.rst`. Now I'll no longer forget the subtleties of each! This patch adds two new visibility macros: * `_LIBCPP_ENUM_VIS` for controlling the typeinfo of enum types. Only Clang supports this. * `_LIBCPP_EXTERN_TEMPLATE_TYPE_VIS` for redefining visibility on explicit instantiation declarations. Clang and Windows require this. After applying this patch GCC only emits one -Wattribute warning opposed to 30+. Reviewers: mclow.lists, EricWF Subscribers: beanz, mgorny, cfe-commits Differential Revision: https://reviews.llvm.org/D24602 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@281673 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-10[streambuf] Added call to traits_type::copy to common case in xsgetn()Evandro Menezes
Patch by Laman Sole <laxman.g@partner.samsung.com>, Sebastian Pop <s.pop@samsung.com>, Aditya Kumar <aditya.k7@samsung.com> Differential Revision: http://reviews.llvm.org/D21103 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@272401 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-08Revert "Remove visibility attributes from out-of-class method definitions in ↵Evgeniy Stepanov
iostreams." git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@257193 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-09Remove visibility attributes from out-of-class method definitions in iostreams.Evgeniy Stepanov
No point in pretending that these methods are hidden - they are actually exported from libc++.so. Extern template declarations make them part of libc++ ABI. This patch does not change libc++.so export list (at least on Linux). git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@255177 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-19Make basic_streambuf::xsputn write characters in chunks whenever possible, ↵Marshall Clow
instead of one at a time. References PR#10193 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@229866 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-12Nico Rieck: this patch series fixes visibility issues on Windows as ↵Howard Hinnant
explained in <http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-August/031214.html>. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@188192 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-06No functionality change at this time. I've split _LIBCPP_VISIBLE up into ↵Howard Hinnant
two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS. This is in preparation for taking advantage of clang's new __type_visibility__ attribute. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@176593 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Provide a way to disable use of extern templates in libc++. This is ↵Howard Hinnant
intended for the clients of libc++, not the libc++ build. The dylib should always contain the extern templates. To disable the client needs to put -D'_LIBCPP_EXTERN_TEMPLATE(...)=' on the command line. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@167486 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13Use traits_type::to_int_type in basic_streambuf<_CharT, _Traits>::xsputn ↵Howard Hinnant
when calling overflow to correctly handle negative signed character types. This fixes http://llvm.org/bugs/show_bug.cgi?id=14074. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@165884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01Quash a whole bunch of warningsHoward Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145624 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-17Windows support by Ruben Van Boxem.Howard Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@142235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30_STD -> _VSTD to avoid macro clash on windowsHoward Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@134190 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16license changeHoward Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-23visibility-decoration.Howard Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@114671 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Fixing whitespace problemsHoward Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11Wiped out some non-ascii characters that snuck into the copyright.Howard Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11libcxx initial importHoward Hinnant
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 23:15:17 +0000