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wcstod(3C)							    wcstod(3C)

NAME
       wcstod(),  wcstof(),  wcstold()	- convert a wide character string to a
       double-precision number

SYNOPSIS
   Itanium(R)-based Systems Only
   Remarks
       These functions are compliant with the UNIX standard  Worldwide	Porta‐
       bility  Interface  wide-character  formatting functions.	 They parallel
       the 8-bit character formatting functions defined	 in  strtod(3C),  str‐
       told(3C) and strtof(3C) respectively.

DESCRIPTION
       The  and	 functions  return the value represented by the wide-character
       string pointed to by nptr as a double-precision floating-point  number,
       single-precision	 floating-point number, and long double-precision num‐
       ber, respectively.  The	wide  character	 string	 is  scanned  (leading
       white-space  characters	as defined by in wctype(3C) are ignored) up to
       the first unrecognized character.  If no	 conversion  can  take	place,
       zero is returned.

       The and functions recognize wide characters in the following sequence:

	      1.      An optional string of white space wide characters, which
		      are ignored
	      2.      An optional sign followed by one of the following:
		      ·	     A string of digits optionally containing a	 radix
			     character,	 then  an  optional  or followed by an
			     optional sign or space, followed by an integer
		      ·	     A 0x or 0X, then a non-empty sequence of hexadec‐
			     imal digits optionally containing a radix charac‐
			     ter, then an optional binary exponent part
		      ·	   One of INF or INFINITY, or any  other  wide	string
			   equivalent except for case
		      ·	   One	of  NAN or NAN(n-wchar-sequence), or any other
			   wide string ignoring case in the NAN part, where n-
			   wchar-sequence is:
			   ·  digit
			   ·  nondigit
			   ·  n-wchar-sequence digit
			   ·  n-wchar-sequence nondigit

       The  radix character is determined by the current environment (see set‐
       locale(3C)).  If has not been called successfully, the default environ‐
       ment,  "C", is used (see lang(5)).  The default environment specifies a
       period (.) as the radix character.

       If the value of endptr is not the variable to which it points is set to
       point  at  the  wide  character after the last number, if any, that was
       recognized.  If no number can be formed, is set to nptr,	 and  zero  is
       returned.

EXTERNAL INFLUENCES
   Environment Variables
       determines the value of the radix character within the currently loaded
       environment.

       determines how wide character codes are interpreted.

   International Code Set Support
       Single- and multibyte character code sets are supported.

RETURN VALUE
       If the correct value would cause overflow, or is returned (according to
       the sign of the value), and is set to

       If the correct value would cause underflow, zero is returned and is set
       to

       If encounters an input wide character string equal  to  or  (both  case
       insensitive)  it	 will  return  If  encounters  an input wide character
       string equal to or (both case insensitive) it will return

AUTHOR
       was developed by AT&T and HP.  and were developed by HP.

SEE ALSO
       scanf(3S),    setlocale(3C),    wcstol(3C),    wctype(3C),     lang(5),
       thread_safety(5), glossary(9).

STANDARDS CONFORMANCE
								    wcstod(3C)

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