explain_strtold_or_die3
Convert string to number and report errors
Usage
#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))
Overview
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.
Examples
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);Releases
6 releases since Debian 7 (Wheezy); the text changed 1 time.