explain_strtold_or_die (3)

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NAME

explain_strtold_or_die - convert string to number and report errors

SYNOPSIS

#include <libexplain/strtold.h>

long double explain_strtold_or_die(const char *nptr, char **endptr);
long double explain_strtold_on_error(const char *nptr, char **endptr))

DESCRIPTION

The explain_strtold_or_die function is used to call the strtold(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtold(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_strtold_on_error function is used to call the strtold(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtold(3) function, but still returns to the caller.

nptr

The nptr, exactly as to be passed to the strtold(3) system call.

endptr

The endptr, exactly as to be passed to the strtold(3) system call.

RETURN VALUE

The explain_strtold_or_die function only returns on success, see strtold(3) for more information. On failure, prints an explanation and exits, it does not return.

The explain_strtold_on_error function always returns the value return by the wrapped strtold(3) system call.

EXAMPLE

The explain_strtold_or_die function is intended to be used in a fashion similar to the following example:

long double result = explain_strtold_or_die(nptr, endptr);

SEE ALSO

strtold(3)

convert ASCII string to floating-point number

explain_strtold(3)

explain strtold(3) errors

exit(2)

terminate the calling process

COPYRIGHT

libexplain version 0.52
Copyright (C) 2009 Peter Miller

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