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ios.cc (ios_base::Init::_S_ios_create): Rename __bufsize to __out_bufsize.

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libstdc++/2211
	* src/ios.cc (ios_base::Init::_S_ios_create): Rename __bufsize to
	__out_bufsize.  Add __in_bufsize, document it and use it.

From-SVN: r43707
This commit is contained in:
Loren J. Rittle 2001-07-02 20:50:40 +00:00 committed by Loren J. Rittle
parent 528aeb4896
commit 861d4e70e8
2 changed files with 22 additions and 7 deletions
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6
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,9 @@
2001-07-02 Loren J. Rittle <ljrittle@acm.org>
libstdc++/2211
* src/ios.cc (ios_base::Init::_S_ios_create): Rename __bufsize to
__out_bufsize. Add __in_bufsize, document it and use it.
2001-07-01 Stephen M. Webb <stephen@bregmasoft.com>
* include/bits/stl_construct.h (construct): Remove.

23
libstdc++-v3/src/ios.cc
View File

@ -144,14 +144,23 @@ namespace std
void
ios_base::Init::_S_ios_create(bool __sync)
{
int __bufsize = __sync ? 0 : static_cast<int>(BUFSIZ);
int __out_bufsize = __sync ? 0 : static_cast<int>(BUFSIZ);
int __in_bufsize = __sync ? 1 : static_cast<int>(BUFSIZ);
#if _GLIBCPP_AVOID_FSEEK
// Platforms that prefer to avoid fseek() calls on streams only
// get their desire when the C++-layer input buffer size is 1.
// This hack hurts performance but keeps correctness across
// all types of streams that might be attached to (e.g.) cin.
__in_bufsize = 1;
#endif
// NB: The file globals.cc creates the four standard files
// with NULL buffers. At this point, we swap out the dummy NULL
// [io]stream objects and buffers with the real deal.
new (&buf_cout) filebuf(stdout, ios_base::out, __bufsize);
new (&buf_cin) filebuf(stdin, ios_base::in, 1);
new (&buf_cerr) filebuf(stderr, ios_base::out, __bufsize);
new (&buf_cout) filebuf(stdout, ios_base::out, __out_bufsize);
new (&buf_cin) filebuf(stdin, ios_base::in, __in_bufsize);
new (&buf_cerr) filebuf(stderr, ios_base::out, __out_bufsize);
new (&cout) ostream(&buf_cout);
new (&cin) istream(&buf_cin);
new (&cerr) ostream(&buf_cerr);
@ -160,9 +169,9 @@ namespace std
cerr.flags(ios_base::unitbuf);
#ifdef _GLIBCPP_USE_WCHAR_T
new (&buf_wcout) wfilebuf(stdout, ios_base::out, __bufsize);
new (&buf_wcin) wfilebuf(stdin, ios_base::in, 1);
new (&buf_wcerr) wfilebuf(stderr, ios_base::out, __bufsize);
new (&buf_wcout) wfilebuf(stdout, ios_base::out, __out_bufsize);
new (&buf_wcin) wfilebuf(stdin, ios_base::in, __in_bufsize);
new (&buf_wcerr) wfilebuf(stderr, ios_base::out, __out_bufsize);
new (&wcout) wostream(&buf_wcout);
new (&wcin) wistream(&buf_wcin);
new (&wcerr) wostream(&buf_wcerr);