* config/cpu/i386/bits/limits.h (__glibcpp_long_double_bits): Only
define if not already provided by per-OS file.
* config/os/bsd/freebsd/bits/os_defines.h (__glibcpp_long_double_bits):
Define.
From-SVN: r45165
libstdc++/2071
* porting.texi: Add documentation about libstdc++-v3-specific
macros that are currently included in os_defines.h files.
* config/basic_file_stdio.h (sys_getc): New method.
(sys_ungetc): New method.
* include/bits/basic_file.h: (sys_getc): New method signature.
(sys_ungetc): New method signature.
* include/bits/fstream.tcc (underflow): Add conditional code
paths which avoid using short seeks on streams (especially
useful when the stream might be interactive or a pipe). At
the moment, this alternate path only avoids seeking when the
``buffer size'' of underflow() is 1 since the C standard only
guarantees buffer space for one ungetc (this technique could
be extended since *-*-solaris* supports buffering for 4 calls
to ungetc and *-*-*bsd* supports buffering limited only by
memory resources). Also, _GLIBCPP_AVOID_FSEEK must be defined
in a port's os_defines.h file for this alternate path to even
be considered. As a bonus, the idiom of using getc/ungetc
requires no system calls whereas fseek maps to one or two
system call(s) on many platforms.
* config/os/bsd/freebsd/bits/os_defines.h (_GLIBCPP_AVOID_FSEEK):
Define it.
* config/os/solaris/solaris2.5/bits/os_defines.h
(_GLIBCPP_AVOID_FSEEK): Likewise.
* config/os/solaris/solaris2.6/bits/os_defines.h
(_GLIBCPP_AVOID_FSEEK): Likewise.
* config/os/solaris/solaris2.7/bits/os_defines.h
(_GLIBCPP_AVOID_FSEEK): Likewise.
From-SVN: r43278
* config/os/bsd/freebsd/bits/ctype_inline.h (is): (Make right
code path:) Remove magic constants and restructure to handle
ctype.h bit mask layout changes more gracefully. (Make fast
code path:) Use __maskrune (), if available.
(is): Remove special case for digit and xdigit masks.
From-SVN: r38847
2000-12-13 Benjamin Kosnik <bkoz@redhat.com>
* include/bits/locale_facets.h (ctype<char>): Remove throw specs not in
base class signature.
* config/os/*/bits/ctype_inline.h (is): Same.
From-SVN: r38250
