atof(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON

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

NAME         top

       atof - convert a string to a double

SYNOPSIS         top

       #include <stdlib.h>

       double atof(const char *nptr);

DESCRIPTION         top

       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         top

       The converted value.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌───────────────────────────────┬───────────────┬────────────────┐
       │Interface                      Attribute     Value          │
       ├───────────────────────────────┼───────────────┼────────────────┤
       │atof()                         │ Thread safety │ MT-Safe locale │
       └───────────────────────────────┴───────────────┴────────────────┘

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.

SEE ALSO         top

       atoi(3), atol(3), strfromd(3), strtod(3), strtol(3), strtoul(3)

COLOPHON         top

       This page is part of release 5.11 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

GNU                            2021-03-22                        ATOF(3)

Pages that refer to this page: atoi(3)strfromd(3)strtod(3)strtol(3)strtoul(3)