home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
EnigmA Amiga Run 1995 November
/
EnigmA AMIGA RUN 02 (1995)(G.R. Edizioni)(IT)[!][issue 1995-11][Skylink CD].iso
/
earcd
/
program
/
gcc
/
gcc270-d.lha
/
gnu
/
man
/
cat3
/
strtod.0
< prev
next >
Wrap
Text File
|
1992-08-10
|
2KB
|
67 lines
STRTOD(3) UNIX Programmer's Manual STRTOD(3)
NNAAMMEE
ssttrrttoodd - convert ASCII string to double
SSYYNNOOPPSSIISS
##iinncclluuddee <<ssttddlliibb..hh>>
_d_o_u_b_l_e
ssttrrttoodd(_c_o_n_s_t _c_h_a_r _*_n_p_t_r, _c_h_a_r _*_*_e_n_d_p_t_r)
DDEESSCCRRIIPPTTIIOONN
The ssttrrttoodd() function converts the initial portion of the string pointed
to by _n_p_t_r to _d_o_u_b_l_e representation.
The expected form of the string is an optional plus (``+'') or minus sign
(``'') followed by a sequence of digits optionally containing a decimal
point character, optionally followed by an exponent. An exponent con
sists of an ``E'' or ``e'', followed by an optional plus or minus sign,
followed by a sequence of digits.
Leading whitespace characters in the string (as defined by the iss
pace(3) function) are skipped.
RREETTUURRNN VVAALLUUEESS
The ssttrrttoodd() function returns the converted value, if any.
If _e_n_d_p_t_r is not NULL, a pointer to the character after the last charac
ter used in the conversion is stored in the location referenced by
_e_n_d_p_t_r.
If no conversion is performed, zero is returned and the value of _n_p_t_r is
stored in the location referenced by _e_n_d_p_t_r.
If the correct value would cause overflow, plus or minus HUGE_VAL is re
turned (according to the sign of the value), and ERANGE is stored in
_e_r_r_n_o. If the correct value would cause underflow, zero is returned and
ERANGE is stored in _e_r_r_n_o.
EERRRROORRSS
[ERANGE] Overflow or underflow occurred.
SSEEEE AALLSSOO
atof(3), atoi(3), atol(3), strtol(3), strtoul(3)
SSTTAANNDDAARRDDSS
The ssttrrttoodd() function conforms to ANSI C3.1591989 (``ANSI C'').
BBUUGGSS
This manual page represents intent instead of actual practice. The
ssttrrttoodd() function is not currently available.
BSD Experimental June 29, 1991 1