Commit Graph

720 Commits

Author SHA1 Message Date
Doug Gregor
1ab28be596 mangle.c (write_type): Change mangling of rvalue reference from RR' to O'.
2007-08-31  Douglas Gregor  <doug.gregor@gmail.com>

	* mangle.c (write_type): Change mangling of rvalue reference from
	`RR' to `O'. 

2007-08-31  Douglas Gregor  <doug.gregor@gmail.com>
	
	* demangle.h (enum demangle_component_type): Add
	DEMANGLE_COMPONENT_RVALUE_REFERENCE. 

2007-08-31  Douglas Gregor  <doug.gregor@gmail.com>
	
	* cp-demangle.c (d_dump): Handle
	DEMANGLE_COMPONENT_RVALUE_REFERENCE. 
	(d_make_comp): Ditto.
	(cplus_demangle_type): Ditto.
	(d_print_comp): Ditto.
	(d_print_mod): Ditto.
	(d_print_function_type): Ditto.

2007-08-31  Douglas Gregor  <doug.gregor@gmail.com>

	* testsuite/abi/demangle/cxx0x/rref.cc: New.

From-SVN: r127999
2007-08-31 19:15:26 +00:00
Kai Tietz
1651030c42 [patch]: libiberty pex for _WIN64.
From-SVN: r127761
2007-08-24 09:40:35 +02:00
Michael Snyder
9c79ad8bf8 make-relative-prefix.c (make_relative_prefix_1): Resource leaks.
2007-08-17  Michael Snyder  <msnyder@access-company.com>
* make-relative-prefix.c (make_relative_prefix_1): Resource leaks.

From-SVN: r127595
2007-08-17 15:28:22 -04:00
Michael Snyder
fd83e38711 make-relative-prefix.c (make_relative_prefix_1): Fix resource leak.
* make-relative-prefix.c (make_relative_prefix_1): Fix resource
	leak.

From-SVN: r127183
2007-08-03 17:38:14 +00:00
Michael Snyder
ac847e32a0 * cp-demangle.c (d_print_comp): Guard against null.
From-SVN: r127139
2007-08-01 17:29:40 -04:00
Ben Elliston
f4f29b5998 ternary.h: Remove.
include/
	* ternary.h: Remove.

libiberty/
	* Makefile.in (CFILES): Remove ternary.c.
	(REQUIRED_OFILES): Remove ./ternary.o.
	(INSTALLED_HEADERS): Remove ternary.h.
	(ternary.o): Remove.
	* ternary.c: Remove.

From-SVN: r126902
2007-07-25 16:26:45 +10:00
DJ Delorie
f4e00f444b argv.c (writeargv): Fix typo in inline documentation.
* argv.c (writeargv): Fix typo in inline documentation.
* functions.texi: Regenerate.

From-SVN: r126855
2007-07-23 13:29:17 -04:00
DJ Delorie
6a9131e7c3 configure.ac (target_header_dir, msdosdjgpp): Remove duplicate gettimeofday entry.
* configure.ac (target_header_dir, msdosdjgpp): Remove duplicate
gettimeofday entry.
* configure: Likewise.

From-SVN: r126704
2007-07-17 13:52:28 -04:00
Alexandre Oliva
0f3d38b644 maint-tool (deps): Output stamp-h instead of config.h.
* maint-tool (deps): Output stamp-h instead of config.h.
* Makefile.in: Rebuild deps.
(maintainer-clean-subdir): Depend on stamp-h rather than config.h.

From-SVN: r126569
2007-07-12 02:23:52 +00:00
Simon Baldwin
38bb34854d argv.c (writeargv): Removed declaration of unused variable.
2007-07-02  Simon Baldwin <simonb@google.com>

        * argv.c (writeargv): Removed declaration of unused variable.

From-SVN: r126217
2007-07-02 17:25:37 +00:00
Paolo Bonzini
aa2480c5fb configure.ac: Use ACX_PROG_CC_ALMOST_PEDANTIC too.
2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

	* configure.ac: Use ACX_PROG_CC_ALMOST_PEDANTIC too.
	* configure: Regenerate.

From-SVN: r125716
2007-06-14 14:40:58 +00:00
Paolo Bonzini
3bbd5a19eb acinclude.m4 (gcc_AC_CHECK_PROG_VER): Remove.
gcc:
2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

        * acinclude.m4 (gcc_AC_CHECK_PROG_VER): Remove.
        * aclocal.m4: Regenerate.
        * configure.ac: Use ACX_PROG_CC_WARNING_OPTS,
        ACX_PROG_CC_WARNINGS_ARE_ERRORS,
        ACX_PROG_CC_WARNING_ALMOST_PEDANTIC, ACX_CHECK_PROG_VER.
	* configure: Regenerate.
        * Makefile.in (LOOSE_WARN): Subst loose_warn.

        * Makefile.in (quickstrap): Build libgcc too.

libiberty:
2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

        * aclocal.m4: Include config/warnings.m4.
        * configure.ac: Use ACX_PROG_CC_WARNING_OPTS.
	* configure: Regenerate.

config:
2007-06-14  Paolo Bonzini  <bonzini@gnu.org>

        * acx.m4 (ACX_CHECK_PROG_VER): Remove duplicate lines.

From-SVN: r125700
2007-06-14 08:10:41 +00:00
Geoffrey Keating
abea993f79 configure.ac: Non-default multilibs can be cross compilations.
* configure.ac: Non-default multilibs can be cross compilations.
	* configure: Regenerate

From-SVN: r125536
2007-06-07 18:42:47 +00:00
Nathan Froyd
2091ff6689 libiberty.h (writeargv): Declare.
include/
2007-05-07  Nathan Froyd  <froydnj@codesourcery.com>

	* libiberty.h (writeargv): Declare.

libiberty/
2007-05-07  Nathan Froyd  <froydnj@codesourcery.com>

	* argv.c (writeargv): New function.

gcc/
2007-05-07  Nathan Froyd  <froydnj@codesourcery.com>

	* gcc.c (at_file_supplied): New variable.
	(main): Set it if we expanded argv.
	(do_spec_1): Pass an @-file to the linker if we were called with
	an @-file argument and HAVE_GNU_LD.
	* collect2.c (at_file_supplied): New variable.
	(response_file): New variable.
	(collect_exit): Unlink response_file if necessary.
	(handler): Likewise.
	(do_wait): Likewise.
	(main): Set at_file_supplied if we expanded argv.
	(collect_execute): Pass an @-file to subprocesses if we were called
	with an @-file argument.
	* configure.ac: Add define for HAVE_GNU_LD.
	* configure: Regenerate.
	* config.in: Regenerate.

From-SVN: r124532
2007-05-08 00:37:39 +00:00
Geoffrey Keating
a2aa65f063 Index: libiberty/ChangeLog
2007-05-04  Geoffrey Keating  <geoffk@apple.com>

	* cp-demangle.c (d_name): Detect local-source-name.
	(d_prefix): Likewise.
	(d_unqualified_name): Implement local-source-name.

Index: gcc/cp/ChangeLog
2007-05-04  Geoffrey Keating  <geoffk@apple.com>

	PR 31775
	* mangle.c (write_mangled_name): Mangle static variable names.
	(write_unqualified_name): Use local-source-name for
	namespace-scope static variables.

Index: gcc/testsuite/ChangeLog
2007-05-04  Geoffrey Keating  <geoffk@apple.com>

	PR 31775
	* g++.dg/other/nested-extern.cc: New.
	* g++.dg/other/nested-extern-1.C: New.
	* g++.dg/other/nested-extern-2.C: New.

From-SVN: r124467
2007-05-06 00:01:36 +00:00
Joel Brobecker
186c60abb2 filename_cmp.c: Replace include of ctype.h by include of safe-ctype.h.
* filename_cmp.c: Replace include of ctype.h by include of
        safe-ctype.h.
        (filename_cmp): Use TOLOWER instead of tolower for conversions
        that are locale-independent.
        * Makefile.in (filename_cmp.o): Add dependency on safe-ctype.h.

From-SVN: r124399
2007-05-03 23:39:35 +00:00
Thomas Neumann
017133fdc1 argv.c: Use ANSI C declarations.
* argv.c: Use ANSI C declarations.
* make-relative-prefix.c: Likewise.

From-SVN: r123722
2007-04-11 15:02:45 -04:00
Joel Brobecker
96a94ff460 * filename_cmp.c (filename_cmp): Improve documentation.
From-SVN: r123537
2007-04-06 06:00:18 +00:00
Andreas Schwab
320fc205e1 * filename_cmp.c: Include "config.h".
From-SVN: r123425
2007-04-02 11:21:23 +00:00
Joel Brobecker
cde515d9f3 filename_cmp.c: New file.
* filename_cmp.c: New file.
        * Makefile.in (CFILES): Add filename_cmp.c.
        (REQUIRED_OFILES): Add filename_cmp.o
        (filename_cmp.o): New rule.
        * functions.texi: Regenerate.

From-SVN: r123342
2007-03-29 20:55:09 +00:00
Geoffrey Keating
771904f1e6 cp-demangle.c (d_encoding): Exit early on error.
* cp-demangle.c (d_encoding): Exit early on error.
	(d_pointer_to_member_type): Exit early if cplus_demangle_type
	returns NULL.
	(cplus_demangle_type): Likewise.
	* testsuite/demangle-expected: New testcase.

From-SVN: r122972
2007-03-16 01:07:52 +00:00
Brooks Moses
267686a745 Makefile.in: Add install-pdf target as copied from automake v1.10 rules.
* Makefile.in: Add install-pdf target as copied from
automake v1.10 rules.
* testsuite/Makefile.in: Add dummy install-pdf target.

From-SVN: r122438
2007-03-01 15:47:02 -08:00
Peter Breitenlohner
5f81370d9f re PR other/16513 (Libiberty doesn't honor the multi-os-directory settings)
PR other/16513
	* Makefile.in: Install library under $(MULTIOSDIR), not $(MULTISUBDIR).
	Install headers in multilib independent location.


Co-Authored-By: Eric Botcazou <ebotcazou@libertysurf.fr>

From-SVN: r122430
2007-03-01 15:30:27 +00:00
DJ Delorie
f86b57e49f configure.ac: add djgpp-specific results, so we don't have to link during a cross compilation.
* configure.ac: add djgpp-specific results, so we don't have to
link during a cross compilation.
* configure: Regenerated.

From-SVN: r122343
2007-02-26 16:31:42 -05:00
Ralf Wildenhues
15b16eb559 hex.c: Fix typo.
* hex.c: Fix typo.
* choose-temp.c: Likewise.
* functions.texi: Regenerate.

From-SVN: r121435
2007-01-31 15:05:50 -05:00
Vladimir Prus
7cf4c53d1e libiberty.h (PEX_STDERR_TO_PIPE): New define.
include/
        * libiberty.h (PEX_STDERR_TO_PIPE): New define.
        (PEX_BINARY_ERROR): New define.
        (pex_read_err): New function.

        libiberty/
        * pex-common.h (struct pex_obj): New fields
        stderr_pipe and read_err.
        * pex-common.c (pex_init_common): Initialize
        stderr_pipe.

From-SVN: r121430
2007-01-31 18:40:34 +00:00
Ben Elliston
ae452ed134 strsignal.c (psignal): Change type of signo to int.
* strsignal.c (psignal): Change type of signo to int.
	* functions.texi: Regenerate.

From-SVN: r121364
2007-01-31 10:12:29 +11:00
Simon Baldwin
456cc5cf65 demangle.h: New cplus_demangle_print_callback...
include/:
	* demangle.h: New cplus_demangle_print_callback,
	cplus_demangle_v3_callback, and java_demangle_v3_callback function
	prototypes, and demangle_callbackref type definition.
libiberty/:
	* cp-demangle.h (cplus_demangle_operators): External definition
	suppressed if not building for libstdc++.
	* cp-demangle.c (__gcclibcxx_demangle_callback): Augmented interface
	to demangling, provides a malloc-less version of __cxa_demangle.
	(cplus_demangle_print_callback): Public callback version of
	cplus_demangle_print.
	(struct d_growable_string): New growable string structure.
	(d_growable_string_init): New function, provides support for
	growable strings separate from print info.
	(d_growable_string_resize): Likewise.
	(d_growable_string_append_buffer): Likewise.
	(d_growable_string_callback_adapter):): Likewise.
	(d_print_init): New print info initialization function.
	(d_print_error): Macro replace by inline function.
	(d_print_saw_error): Likewise.
	(d_append_char): Likewise.
	(d_append_buffer): Likewise.
	(d_append_string): New inline function, replaces the
	d_append_string_constant macro.
	(d_flush_buffer): New function, flushes buffer to callback.
	(d_demangle_callback, is_ctor_or_dtor): Malloc-based fallback
	for unsupported dynamic arrays replaced by alloca().
	(d_demangle): Return string length estimating removed.
	(d_dump): Moved error case handling from call site into function.
	(d_print_resize): Function removed.
	(d_print_append_char): Likewise.
	(d_print_append_buffer): Likewise.
	(d_print_error): Likewise.
	(d_print_comp): Added special case handling for Java arrays.
	(java_demangle_v3): Removed string post-processing for Java arrays,
	now replaced by special case handling in d_print_comp.
	(cplus_demangle_v3_callback): Augmented interface to demangling,
	provides a malloc-less version of cplus_demangle_v3.
	(java_demangle_v3_callback): Augmented interface to demangling,
	provides a malloc-less version of java_demangle_v3.

From-SVN: r121305
2007-01-29 20:07:49 +00:00
Ben Elliston
1a8e58a38f * pex-unix.c (writeerr): Cast write result to void.
From-SVN: r120702
2007-01-12 13:21:26 +11:00
Ben Elliston
4d4f016471 Typo fix.
From-SVN: r120699
2007-01-12 11:38:11 +11:00
Ben Elliston
7d37bf39d0 choose-temp.c (choose_temp_base): Check the result of the call to mktemp rather than testing the length of the...
* choose-temp.c (choose_temp_base): Check the result of the call
	to mktemp rather than testing the length of the modified string.

From-SVN: r120698
2007-01-12 11:37:48 +11:00
Geoffrey Keating
5165f1258b cp-demangle.h: Add comment explaining what to do to avoid overrunning string.
* cp-demangle.h: Add comment explaining what to do to avoid
	overrunning string.
	(d_check_char): New.
	(d_next_char): Don't advance past trailing '\0'.
	* cp-demangle.c (cplus_demangle_mangled_name): Use d_check_char.
	(d_nested_name): Likewise.
	(d_special_name): Likewise.
	(d_call_offset): Likewise.
	(d_function_type): Likewise.
	(d_array_type): Likewise.
	(d_pointer_to_member_type): Likewise.
	(d_template_param): Likewise.
	(d_template_args): Likewise.
	(d_template_arg): Likewise.
	(d_expr_primary): Likewise.
	(d_local_name): Likewise.
	(d_substitution): Likewise.
	(d_ctor_dtor_name): Use d_advance rather than d_next_char.
	* testsuite/test-demangle.c: Include sys/mman.h.
	(MAP_ANONYMOUS): Define.
	(protect_end): New.
	(main): Use protect_end.
	* testsuite/demangle-expected: Add testcases for overrunning
	the end of the string.

From-SVN: r120097
2006-12-21 01:29:27 +00:00
Andrew Stubbs
334737afb7 re PR driver/29931 (following argv[0] symlink in process_command breaks symlinked-together toolchain)
include:
2006-05-03  Andrew Stubbs  <andrew.stubbs@st.com>
            J"orn Rennecke <joern.rennecke@st.com>

	PR driver/29931
	* libiberty.h (make_relative_prefix_ignore_links): Declare.

libiberty:
2006-05-03  Andrew Stubbs  <andrew.stubbs@st.com>
            J"orn Rennecke <joern.rennecke@st.com>

	PR driver/29931
	* make-relative-prefix.c (make_relative_prefix_1): New function,
	broken out of make_relative_prefix.  Make link resolution dependent
	on new parameter.
	(make_relative_prefix): Use make_relative_prefix_1.
	(make_relative_prefix_ignore_links): New function.

Co-Authored-By: J"orn Rennecke <joern.rennecke@st.com>

From-SVN: r119366
2006-11-30 17:05:45 +00:00
Vladimir Prus
e9903c672a pex-win32.c (no_suffixes): Remove.
2006-11-08  Vladimir Prus  <vladimir@codesourcery.com>

        * pex-win32.c (no_suffixes): Remove.
        (std_suffixes): Add "" as first element.
        (find_executable): Remove detection of already-present
        extension. Try all suffixes in std_suffixes.

From-SVN: r118595
2006-11-08 18:16:27 +00:00
Julian Brown
36b8206084 floatformat.c (get_field): Fix segfault with little-endian word order on 64-bit hosts.
* floatformat.c (get_field): Fix segfault with little-endian word
	order on 64-bit hosts.
	(put_field): Likewise.
	(min): Move definition.

From-SVN: r118552
2006-11-07 15:16:07 +00:00
Danny Smith
7445de0a7b pex-win32.c (argv_to_cmdline): Replace xmalloc with XNEWVEC.
(find_executable): Likewise.
	(win32_spawn): Cast alloca return to (char**).
	Replace malloc with XNEWVEC.
	bcopy.c (bcopy): Add explict casts in assignments.

From-SVN: r118058
2006-10-26 03:16:11 +00:00
Ben Elliston
97977a91bb * pexecute.txh: Wrap pexecute's "flag" argument with @var {..}.
From-SVN: r118022
2006-10-25 10:40:15 +10:00
Brooks Moses
b5422ad772 --(top level)--------------------------------------------
2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.def: Added pdf target handling.
	* Makefile.tpl: Added pdf target handling.
	* Makefile.in: Regenerated.

---fixincludes--------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.in: Added empty "pdf" target.

---gcc----------------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* configure.ac: Added pdf to "Make-hooks"
	* Makefile.in: Added TEXI2PDF definition, and various pdf-file
	targets and *.pdf file patterns in cleanup targets.
	* configure: Regenerated.

---gcc/cp-------------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Make-lang.in: Added "c++.pdf" target support.

---gcc/fortran--------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Make-lang.in: Added "fortran.pdf", "gfortran.pdf" target
	support.

---gcc/java-----------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Make-lang.in: Added "java.pdf", "gcj.pdf" target support.

---gcc/objc-----------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Make-lang.in: Added empty "objc.pdf" target.

---gcc/objcp----------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Make-lang.in: Added empty "obj-c++.pdf" target.

---gcc/treelang-------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Make-lang.in: Added "treelang.pdf" target support.

---gnattools----------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.in: Added empty "pdf" target.

---libcpp-------------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.in: Added empty "pdf" target.

---libdecnumber-------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.in: Added empty "pdf" target.

---libiberty----------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.in: Added "pdf", "libiberty.pdf" target support.
	* testsuite/Makefile.in: Added empty "pdf" target.

---libobjc------------------------------------------------

2006-10-10  Brooks Moses  <bmoses@stanford.edu>

	* Makefile.in: Added empty "pdf" target.

From-SVN: r117618
2006-10-10 16:48:09 -07:00
Ian Lance Taylor
53e3e587a9 re PR other/29176 (Seg fault in demangler)
PR other/29176
	* cp-demangle.c (d_substitution): Check for overflow when
	computing substitution index.

From-SVN: r117144
2006-09-22 13:52:29 +00:00
Andrew Pinski
f33a23a09c Fix some whitespace issues in the changelog.
From-SVN: r116880
2006-09-12 00:46:08 -07:00
Corinna Vinschen
70aec81b22 configure.ac: Add case for Mingw as host.
2006-08-30  Corinna Vinschen  <corinna@vinschen.de>
* configure.ac: Add case for Mingw as host.
* configure: Regenerate.

From-SVN: r116586
2006-08-30 09:46:50 -04:00
Ian Lance Taylor
5317e1c7a9 re PR driver/27622 (gcc hang when compiling with -pipe)
PR driver/27622
	* pex-common.h (struct pex_funcs): Add toclose parameter to
	exec_child field.
	* pex-common.c (pex_run_in_environment): Pass toclose to
	exec_child.
	* pex-djgpp.c (pex_djgpp_exec_child): Add toclose parameter.
	* pex-unix.c (pex_unix_exec_child): Likewise.
	* pex-msdos.c (pex_msdos_exec_child): Likewise.
	* pex-win32.c (pex_win32_exec_child): Likewise.

From-SVN: r116494
2006-08-27 23:50:30 +00:00
Ian Lance Taylor
022d41663d re PR other/28797 (Problems with demangling (__cxa_demangle()))
PR other/28797
	* cp-demangle.c (d_pointer_to_member_type): Do add a substitution
	for a qualified member which is not a function.
	* testsuite/demangle-expected: Add test case.

From-SVN: r116493
2006-08-27 21:42:55 +00:00
Jan Hubicka
3050098b16 re PR middle-end/28071 (A file that can not be compiled in reasonable time/space)
PR rtl-optimization/28071
	* hashtab.c (htab_empty): Clear out n_deleted/n_elements;
	downsize the hashtable.

From-SVN: r115779
2006-07-27 17:10:07 +00:00
Peter O'Gorman
706601d965 ltconfig: chmod 644 before ranlib during install.
ChangeLog:
* ltconfig: chmod 644 before ranlib during install.
libiberty/ChangeLog:
* Makefile.in: chmod 644 before ranlib during install.
gcc/ChangeLog:
* mklibgcc.in: chmod 644 before ranlib during install.
libjava/classpath/ChangeLog:
* ltconfig: chmod 644 before ranlib during install.

From-SVN: r115183
2006-07-04 20:20:01 +00:00
Mark Shinwell
239559e797 pex-unix.c (pex_unix_exec_child): Insert cast when assigning to environ.
* pex-unix.c (pex_unix_exec_child): Insert cast when assigning
	to environ.

From-SVN: r114326
2006-06-02 14:36:45 +00:00
Mark Shinwell
ea60341e32 Patch to provide pex_run_in_environment.
* include/libiberty.h: Declare pex_run_in_environment.

libiberty:

	* pex-common.c: New function pex_run_in_environment.
	* pex-common.h: Add environment parameter to exec_child.
	* pex-msdos.c: Add environment parameter to pex_msdos_exec_child.
	* pex-djgpp.c: Add environment parameter to pex_djgpp_exec_child.
	(pex_djgpp_exec_child): Pass environment to child process.
	* pex-unix.c: Add environment parameter to pex_unix_exec_child.
	(pex_unix_exec_child): Pass environment to child process.
	* pex-win32.c: Add environment parameter to pex_win32_exec_child.
	New function env_compare for comparing VAR=VALUE pairs.
	(win32_spawn): Assemble environment block and pass to CreateProcess.
	(spawn_script): Pass environment through to win32_spawn.
	(pex_win32_exec_child): Pass environment through to spawn_script and
	win32_spawn.
	* functions.texi: Regenerate.
	* pexecute.txh: Document pex_run_in_environment.

From-SVN: r114302
2006-06-01 10:30:51 +00:00
Mark Shinwell
8967e0295d Open temporary files in binary mode when using mkstemps.
From-SVN: r114165
2006-05-28 08:48:00 +00:00
Anton Blanchard
824bceb033 cplus-dem.c (demangle_fund_type): Ensure buf is large enough to hold "int%u_t".
* cplus-dem.c (demangle_fund_type): Ensure buf is large enough to
hold "int%u_t".

From-SVN: r113728
2006-05-12 15:44:29 -04:00
Julian Brown
9fff64328d floatformat.c (floatformat_to_double): Fix (biased) exponent=0 case.
* floatformat.c (floatformat_to_double): Fix (biased) exponent=0 case.

From-SVN: r113228
2006-04-24 21:24:27 +00:00