SIMPLE SOLUTIONS

EXPLAIN_SNPRINTF_OR_DIE - reference manual online

Formatted output conversion and report errors.

Chapter
explain_snprintf_or_die(3)           Library Functions Manual          explain_snprintf_or_die(3)

NAME explain_snprintf_or_die - formatted output conversion and report errors
SYNOPSIS #include <libexplain/snprintf.h> int explain_snprintf_or_die(char *data, size_t data_size, const char *format); int explain_snprintf_on_error(char *data, size_t data_size, const char *format);
DESCRIPTION The explain_snprintf_or_die function is used to call the snprintf(3) system call. On fail‐ ure an explanation will be printed to stderr, obtained from the explain_snprintf(3) func‐ tion, and then the process terminates by calling exit(EXIT_FAILURE). The explain_snprintf_on_error function is used to call the snprintf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_snprintf(3) function, but still returns to the caller. data The data, exactly as to be passed to the snprintf(3) system call. data_size The data_size, exactly as to be passed to the snprintf(3) system call. format The format, exactly as to be passed to the snprintf(3) system call.
RETURN VALUE The explain_snprintf_or_die function only returns on success, see snprintf(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_snprintf_on_error function always returns the value return by the wrapped snprintf(3) system call.
EXAMPLE The explain_snprintf_or_die function is intended to be used in a fashion similar to the following example: int result = explain_snprintf_or_die(data, data_size, format);
SEE ALSO snprintf(3) formatted output conversion explain_snprintf(3) explain snprintf(3) errors exit(2) terminate the calling process
explain_snprintf_or_die(3)
This manual Reference Other manuals
explain_snprintf_or_die(3) referred by explain(3) | explain_snprintf(3)
refer to _exit(2) | explain_snprintf(3) | printf(3)