atof − convert a string to a double

#include <stdlib.h>

double atof(const char *nptr);

The atof() function converts the initial portion of the string pointed to by nptr to double. The behaviour is the same as

strtod(nptr, (char **)NULL);

except that atof() does not detect errors.

The converted value.

SVID 3, POSIX, BSD 4.3, ISO 9899

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