SIMPLE SOLUTIONS

EXPLAIN_STRTOULL_OR_DIE - reference manual online

Convert string to integer and report errors.

Chapter
explain_strtoull_or_die(3)           Library Functions Manual          explain_strtoull_or_die(3)

NAME explain_strtoull_or_die - convert string to integer and report errors
SYNOPSIS #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))
DESCRIPTION The explain_strtoull_or_die function is used to call the strtoull(3) system call. On fail‐ ure an explanation will be printed to stderr, obtained from the explain_strtoull(3) func‐ tion, 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. endptr The endptr, exactly as to be passed to the strtoull(3) system call. base The base, exactly as to be passed to the strtoull(3) system call.
RETURN VALUE 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 str‐ toull(3) system call.
EXAMPLE 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);
SEE ALSO strtoull(3) convert a string to an unsigned long integer explain_strtoull(3) explain strtoull(3) errors exit(2) terminate the calling process
explain_strtoull_or_die(3)
This manual Reference Other manuals
explain_strtoull_or_die(3) referred by explain(3) | explain_strtoull(3)
refer to _exit(2) | explain_strtoull(3) | strtoul(3)