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Import correctly working strtold from David M. Gay.

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* libc/stdlib/Makefile.am (GENERAL_SOURCES): Add strtodg.c and
	strtorx.c.
	* libc/stdlib/Makefile.in: Regenerate.
	* libc/stdlib/strtodg.c: New file implementing generic string to long
	double conversion.
	* libc/stdlib/strtorx.c: New file, implementing IEEE format string to
	long double conversion.
	* libc/stdlib/mprec.h (_strtodg_r): Declare.
	(_strtorx_r): Declare.
	* libc/stdlib/gdtoa.h (__UShort): Define.
	* libc/stdlib/strtold.c (__flt_rounds): Define for i386 and x86_64
	target.
	(FLT_ROUNDS): Define, as 0 on platforms missing a __flt_rounds
	function.
	(_strtold_r): Converted from strtold.  Call _strtorx_r on targets
	supporting distinct long doubles.
	(strtold): Just call _strtold_r.
	* libc/include/stdlib.h (_strtold_r): Declare.
	* libc/stdlib/ldtoa.c (_strtold): Comment out.  Explain why.
	* libc/stdio/vfscanf.c (__SVFSCANF_R): Call _strtold_r instead of
	_strtold.
	* libc/machine/powerpc/vfscanf.c (__svfscanf_r): Ditto.

	* common.din (strtold): Drop redirection to _strtold.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2015-11-20 18:14:58 +01:00
parent 51bf1b81f3
commit fbace81684
14 changed files with 1371 additions and 21 deletions
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winsup/cygwin/common.din
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@@ -1199,7 +1199,7 @@ strtoimax = strtoll NOSIGFE
strtok NOSIGFE
strtok_r NOSIGFE
strtol NOSIGFE
strtold = _strtold SIGFE
strtold SIGFE
strtoll NOSIGFE
strtosigno NOSIGFE
strtoul NOSIGFE