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newlib-cygwin/newlib/libc/stdlib
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Keith Packard fb01286fab stdlib: Make strtod/strtof set ERANGE consistently for underflow. 
The C standard says that errno may acquire the value ERANGE if the
result from strtod underflows. According to IEEE 754, underflow occurs
whenever the value cannot be represented in normalized form.

Newlib is inconsistent in this, setting errno to ERANGE only if the
value underflows to zero, but not for denorm values, and never for hex
format floats.

This patch attempts to consistently set errno to ERANGE for all
'underflow' conditions, which is to say all values which are not
exactly zero and which cannot be represented in normalized form.

This matches glibc behavior, as well as the Linux, Mac OS X, OpenBSD,
FreeBSD and SunOS strtod man pages.

Signed-off-by: Keith Packard <keithp@keithp.com>
2021-07-07 13:22:02 -04:00
..
__adjust.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
__atexit.c
newlib: don't check malloc/free pointer
2018-08-08 10:50:19 +02:00
__call_atexit.c
newlib: don't check malloc/free pointer
2018-08-08 10:50:19 +02:00
__exp10.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
__ten_mu.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
_Exit.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
a64l.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
abort.c
ansification: remove _VOID
2018-01-17 11:47:20 -06:00
abs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
aligned_alloc.c
Include malloc.h in libc/stdlib/aligned_alloc.c
2021-02-18 02:05:47 +01:00
arc4random_uniform.c
Add arc4random() etc. from OpenBSD 5.8
2016-03-18 12:33:41 +01:00
arc4random.c
Fix warnings when building for msp430-elf
2020-09-03 12:55:32 +02:00
arc4random.h
Only define static locks in multithreaded mode
2017-02-13 17:04:17 -05:00
assert.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
atexit.c
ansification: remove _EXFNPTR, _EXPARM
2018-01-17 11:47:27 -06:00
atexit.h
ansification: remove _PTR
2018-01-17 11:47:16 -06:00
atof.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
atoff.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
atoi.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
atol.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
atoll.c
Use remove-advertising-clause script to edit BSD licenses
2020-01-29 19:03:31 +01:00
btowc.c
Consolidate wctomb/mbtowc calls for POSIX-1.2008
2016-08-15 10:56:57 +02:00
calloc.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
chacha_private.h
Cleanup macros in chacha_private.h to be target-type independent
2016-03-18 21:20:06 +01:00
cxa_atexit.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
cxa_finalize.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
div.c
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2020-01-29 19:03:31 +01:00
drand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
dtoa.c
Prevent NULL ptr accesses due to Balloc out of memory
2019-10-04 17:43:49 -04:00
dtoastub.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
ecvtbuf.c
Don't display trailing '.' in _dcvt
2019-12-18 20:53:36 +01:00
efgcvt.c
fix compile errors for efgcvt.c
2019-07-24 11:58:21 +02:00
environ.c
2002-12-20 Jeff Johnston <jjohnstn@redhat.com>
2002-12-20 21:07:56 +00:00
envlock.c
stdlib: remove TRAD_SYNOPSIS
2017-12-01 03:41:52 -06:00
eprintf.c
…
erand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
exit.c
Fix syntax error in exit.c
2018-01-19 19:58:10 +01:00
gdtoa-gethex.c
Prevent more NULL ptr accesses due to Balloc out of memory
2020-01-09 15:18:14 -05:00
gdtoa-hexnan.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
gdtoa.h
Import correctly working strtold from David M. Gay.
2015-11-20 18:14:58 +01:00
getenv_r.c
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2020-01-29 19:03:31 +01:00
getenv.c
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2020-01-29 19:03:31 +01:00
getopt.c
newlib: getopt now permutes multi-flag options correctly
2018-06-18 18:45:44 +02:00
getsubopt.3
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2020-01-29 19:03:31 +01:00
getsubopt.c
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2020-01-29 19:03:31 +01:00
imaxabs.c
Importing imaxabs inttypes method from FreeBSD.
2017-07-28 12:23:08 +02:00
imaxdiv.c
Importing imaxdiv inttypes method from FreeBSD.
2017-07-28 12:23:10 +02:00
itoa.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
jrand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
l64a.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
labs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
lcong48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
ldiv.c
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2020-01-29 19:03:31 +01:00
ldtoa.c
Prevent more NULL ptr accesses due to Balloc out of memory
2020-01-09 15:18:14 -05:00
llabs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
lldiv.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
local.h
ansification: remove _EXFUN, _EXFUN_NOTHROW
2018-01-17 11:47:29 -06:00
lrand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
Makefile.am
newlib: Build internal strtold code only if HAVE_LONG_DOUBLE defined
2018-10-10 18:01:22 +02:00
Makefile.in
Add build mechanism to share common header files between machines
2021-04-13 12:55:33 +02:00
malign.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
malloc.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mallocr.c
malloc/nano-malloc: correctly check for out-of-bounds allocation reqs
2020-11-17 10:52:34 +01:00
mbctype.h
ansification: remove _EXFUN, _EXFUN_NOTHROW
2018-01-17 11:47:29 -06:00
mblen_r.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mblen.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbrlen.c
2013-11-26 Julio Gutierrez <jgutleyva@gmail.com>
2013-11-26 17:21:01 +00:00
mbrtowc.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbsinit.c
* libc/stdlib/mbrlen.c: Change include order to prevent compiler errors when
2003-12-05 06:13:44 +00:00
mbsnrtowcs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbsrtowcs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbstowcs_r.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbstowcs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbtowc_r.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mbtowc.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mlock.c
stdlib: remove TRAD_SYNOPSIS
2017-12-01 03:41:52 -06:00
mprec.c
Prevent NULL ptr accesses due to Balloc out of memory
2019-10-04 17:43:49 -04:00
mprec.h
Prevent NULL ptr accesses due to Balloc out of memory
2019-10-04 17:43:49 -04:00
mrand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
msize.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mstats.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
mtrim.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
nano-mallocr.c
Nano-malloc: Fix for unwanted external heap fragmentation
2021-05-03 13:00:33 +02:00
nrand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
on_exit_args.c
Add static instance of _on_exit_args for _REENT_SMALL platforms.
2015-12-21 11:49:28 -05:00
on_exit_args.h
Add static instance of _on_exit_args for _REENT_SMALL platforms.
2015-12-21 11:49:28 -05:00
on_exit.c
ansification: remove _EXFNPTR, _EXPARM
2018-01-17 11:47:27 -06:00
putenv_r.c
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2020-01-29 19:03:31 +01:00
putenv.c
Use remove-advertising-clause script to edit BSD licenses
2020-01-29 19:03:31 +01:00
quick_exit.c
Only define static locks in multithreaded mode
2017-02-13 17:04:17 -05:00
rand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
rand48.h
ansification: remove _EXFUN, _EXFUN_NOTHROW
2018-01-17 11:47:29 -06:00
rand_r.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
rand.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
random.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
realloc.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
reallocarray.c
libc/stdlib: Use __builtin_mul_overflow for reallocarray and calloc
2020-08-12 10:09:56 +02:00
reallocf.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
rpmatch.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
sb_charsets.c
Actually return value from __cp_index
2016-10-22 21:08:44 +02:00
seed48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
setenv_r.c
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2020-01-29 19:03:31 +01:00
setenv.c
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2020-01-29 19:03:31 +01:00
srand48.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
std.h
ansification: remove _HAVE_STDC
2018-01-17 11:47:30 -06:00
stdlib.tex
Add simple versions of random() and srandom()
2016-03-28 22:39:50 -05:00
strtod.c
stdlib: Make strtod/strtof set ERANGE consistently for underflow.
2021-07-07 13:22:02 -04:00
strtodg.c
Prevent more NULL ptr accesses due to Balloc out of memory
2020-01-09 15:18:14 -05:00
strtoimax.c
Added Restriction on base value
2018-08-13 09:42:21 +02:00
strtol.c
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2020-01-29 19:03:31 +01:00
strtold.c
Implement strto[dflu]_l/wcsto[dflu]_l
2016-08-15 17:35:21 +02:00
strtoll_r.c
Implement strto[dflu]_l/wcsto[dflu]_l
2016-08-15 17:35:21 +02:00
strtoll.c
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2020-01-29 19:03:31 +01:00
strtorx.c
newlib: strtold: use __builtin_nanl to avoid libm dependency
2018-10-10 17:53:55 +02:00
strtoul.c
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2020-01-29 19:03:31 +01:00
strtoull_r.c
Implement strto[dflu]_l/wcsto[dflu]_l
2016-08-15 17:35:21 +02:00
strtoull.c
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2020-01-29 19:03:31 +01:00
strtoumax.c
newlib: fix various gcc warnings
2018-08-08 10:50:19 +02:00
system.c
ansification: remove _EXFUN, _EXFUN_NOTHROW
2018-01-17 11:47:29 -06:00
utoa.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
valloc.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wcrtomb.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wcsnrtombs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wcsrtombs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wcstod.c
stdlib: Use __get_numeric_locale instead of __localeconv_l for decimal_point
2018-09-06 14:14:05 +02:00
wcstoimax.c
Importing wcstoimax inttypes method from FreeBSD.
2017-08-02 13:02:26 +02:00
wcstol.c
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2020-01-29 19:03:31 +01:00
wcstold.c
stdlib: Use __get_numeric_locale instead of __localeconv_l for decimal_point
2018-09-06 14:14:05 +02:00
wcstoll_r.c
Implement strto[dflu]_l/wcsto[dflu]_l
2016-08-15 17:35:21 +02:00
wcstoll.c
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2020-01-29 19:03:31 +01:00
wcstombs_r.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wcstombs.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wcstoul.c
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2020-01-29 19:03:31 +01:00
wcstoull_r.c
Implement strto[dflu]_l/wcsto[dflu]_l
2016-08-15 17:35:21 +02:00
wcstoull.c
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2020-01-29 19:03:31 +01:00
wcstoumax.c
Importing wcstoumax inttypes method from FreeBSD.
2017-08-02 13:02:26 +02:00
wctob.c
Consolidate wctomb/mbtowc calls for POSIX-1.2008
2016-08-15 10:56:57 +02:00
wctomb_r.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00
wctomb.c
ansification: remove _DEFUN
2018-01-17 11:47:26 -06:00