explain_strtof_or_die3
Convert string to number and report errors
Usage
#include <libexplain/strtof.h>
float explain_strtof_or_die(const char *nptr, char **endptr);
float explain_strtof_on_error(const char *nptr, char **endptr))
Overview
The explain_strtof_or_die function is used to call the strtof(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtof(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_strtof_on_error function is used to call the strtof(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtof(3) function, but still returns to the caller.
nptr
|
The nptr, exactly as to be passed to the strtof(3) system call. |
|---|---|
endptr
|
The endptr, exactly as to be passed to the strtof(3) system call. |
Return value
The explain_strtof_or_die function only returns on success, see strtof(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_strtof_on_error function always returns the value return by the wrapped strtof(3) system call.
Examples
The explain_strtof_or_die function is intended to be used in a fashion similar to the following example:
float result = explain_strtof_or_die(nptr, endptr);
Releases
6 releases since Debian 7 (Wheezy); the text changed 1 time.