explain_strtoull_or_die − convert string to integer and report errors
#include <libexplain/strtoull.h>
unsigned long long explain_strtoull_or_die(const char *nptr, char **endptr, int base);
unsigned long long explain_strtoull_on_error(const char *nptr, char **endptr, int base))
The explain_strtoull_or_die function is used to call the strtoull(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtoull(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_strtoull_on_error function is used to call the strtoull(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_strtoull(3) function, but still returns to the caller.
nptr |
The nptr, exactly as to be passed to the strtoull(3) system call. |
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endptr |
The endptr, exactly as to be passed to the strtoull(3) system call. |
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base |
The base, exactly as to be passed to the strtoull(3) system call. |
The explain_strtoull_or_die function only returns on success, see strtoull(3) for more information. On failure, prints an explanation and exits, it does not return.
The explain_strtoull_on_error function always returns the value return by the wrapped strtoull(3) system call.
The explain_strtoull_or_die function is intended to be used in a fashion similar to the following example:
unsigned long long result = explain_strtoull_or_die(nptr, endptr, base);
convert a string to an unsigned long integer
explain strtoull(3) errors
terminate the calling process |
libexplain version 1.4
Copyright (C) 2009 Peter Miller