NAME
explain_strtod_or_die - convert string to number and report errors
SYNOPSIS
#include <libexplain/strtod.h>
double explain_strtod_or_die(const char *nptr, char **endptr);
double explain_strtod_on_error(const char *nptr, char **endptr))
DESCRIPTION
The explain_strtod_or_die function is used to call the strtod(3) system
call. On failure an explanation will be printed to stderr, obtained
from the explain_strtod(3) function, and then the process terminates by
calling exit(EXIT_FAILURE).
The explain_strtod_on_error function is used to call the strtod(3)
system call. On failure an explanation will be printed to stderr,
obtained from the explain_strtod(3) function, but still returns to the
caller.
nptr The nptr, exactly as to be passed to the strtod(3) system call.
endptr The endptr, exactly as to be passed to the strtod(3) system
call.
RETURN VALUE
The explain_strtod_or_die function only returns on success, see
strtod(3) for more information. On failure, prints an explanation and
exits, it does not return.
The explain_strtod_on_error function always returns the value return by
the wrapped strtod(3) system call.
EXAMPLE
The explain_strtod_or_die function is intended to be used in a fashion
similar to the following example:
double result = explain_strtod_or_die(nptr, endptr);
SEE ALSO
strtod(3)
convert ASCII string to floating-point number
explain_strtod(3)
explain strtod(3) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.19
Copyright (C) 2009 Peter Miller
explain_strtod_or_die(3)