atof - Man Page

convert a string to a double

Library

Standard C library (libc, -lc)

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).

InterfaceAttributeValue
atof()Thread safetyMT-Safe locale

Standards

C11, POSIX.1-2008.

History

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

See Also

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

Referenced By

atoi(3), dbfadd(1), lmawk(1), mawk(1), nawk(1), perlapi(1), strfromd(3), strtod(3), strtoi.3bsd(3), strtol(3), strtonum.3bsd(3), strtou.3bsd(3), strtoul(3).

2024-05-02 Linux man-pages 6.9.1