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atof(3) [minix man page]

ATOF(3) 						     Library Functions Manual							   ATOF(3)

atof, atoi, atol - convert ASCII to numbers SYNOPSIS
#include <stdlib.h> double atof(const char *nptr) int atoi(const char *nptr) long atol(const char *nptr) DESCRIPTION
These functions convert a string pointed to by nptr to floating, integer, and long integer representation respectively. The first unrecog- nized character ends the string. Atof recognizes an optional string of spaces, then an optional sign, then a string of digits optionally containing a decimal point, then an optional `e' or `E' followed by an optionally signed integer. Atoi and atol recognize an optional string of spaces, then an optional sign, then a string of digits. SEE ALSO
strtol(3), strtod(3), scanf(3). BUGS
There are no provisions for overflow. 7th Edition May 15, 1985 ATOF(3)

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ATOF(3) 						     Linux Programmer's Manual							   ATOF(3)

atof - convert a string to a double SYNOPSIS
#include <stdlib.h> double atof(const char *nptr); DESCRIPTION
The atof() function converts the initial portion of the string pointed to by nptr to double. The behavior is the same as strtod(nptr, NULL); except that atof() does not detect errors. RETURN VALUE
The converted value. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+----------------+ |Interface | Attribute | Value | +----------+---------------+----------------+ |atof() | Thread safety | MT-Safe locale | +----------+---------------+----------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD. SEE ALSO
atoi(3), atol(3), strfromd(3), strtod(3), strtol(3), strtoul(3) COLOPHON
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2016-12-12 ATOF(3)
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