Ubuntu Manpages

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 behavior is the same as


strtod(nptr, NULL);

except that atof() does not detect errors.

The converted value.

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

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

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