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Kito Cheng 91f99d323b Minimal support for ISO/IEC TS 18661-3. 
- GCC will set __FLT_EVAL_METHOD__ to 16 if __fp16 supported, e.g.
   cortex-a55/aarch64.
   - $ aarch64-unknown-elf-gcc -v 2>&1 |grep version
     gcc version 9.2.0 (GCC)
   - $ aarch64-unknown-elf-gcc  -E -dM -mcpu=cortex-a55 - < /dev/null  |grep FLT_EVAL_METHOD
     #define __FLT_EVAL_METHOD__ 16
     #define __FLT_EVAL_METHOD_TS_18661_3__ 16
     #define __FLT_EVAL_METHOD_C99__ 16
 - The behavior of __FLT_EVAL_METHOD__ == 16 is same as
   __FLT_EVAL_METHOD__ == 0 except for float16_t, but newlib didn't
   support float16_t.

ISO/IEC TS 18661-3:
http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2405.pdf

V2 Changes:
- List Howland, Craig D as co-author since he provide the draft of comment
  in math.h.

Co-authored-by: "Howland, Craig D" <howland@LGSInnovations.com>
 		2021-07-12 21:07:43 +02:00
..
argz Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
ctype fix and amend scripts and makefile rules to generate Unicode data 2021-07-06 15:35:37 +02:00
errno Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
iconv Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
include Minimal support for ISO/IEC TS 18661-3. 2021-07-12 21:07:43 +02:00
locale Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
machine aarch64: support binary mode for opening files 2021-05-26 15:17:11 +01:00
misc Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
posix Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
reent Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
search Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
signal Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
ssp Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
stdio stdio: Parse 0x0p+00 correctly in scanf 2021-06-18 17:15:37 -04:00
stdio64 Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
stdlib stdlib: Make strtod/strtof set ERANGE consistently for underflow. 2021-07-07 13:22:02 -04:00
string fix and amend scripts and makefile rules to generate Unicode data 2021-07-06 15:35:37 +02:00
sys libc/sys/rtems/crt0.c: Fix two warnings. 2021-06-17 12:58:36 -05:00
syscalls Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
time Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
unix Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
xdr Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
Makefile.am ssp: add build infrastructure 2017-11-29 11:25:46 -06:00
Makefile.in Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
Makefile.unidata fix and amend scripts and makefile rules to generate Unicode data 2021-07-06 15:35:37 +02:00
aclocal.m4 Fix up errors in regenerated files for 2.3.0 release. 2016-01-04 12:57:31 -05:00
configure Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
configure.in Add build mechanism to share common header files between machines 2021-04-13 12:55:33 +02:00
libc.in.xml ssp: add documentation 2017-11-29 11:25:45 -06:00
libc.texinfo ssp: add documentation 2017-11-29 11:25:45 -06:00
saber Remove matherr, and SVID and X/Open math library configurations 2019-01-23 10:46:24 +01:00
sys.tex Don't include stdio64 functions in reentrant syscalls menu when not bulding stdio64. 2015-08-03 09:54:33 +01:00