explain_vsprintf_or_die(3) [debian man page]
explain_vsprintf_or_die(3) Library Functions Manual explain_vsprintf_or_die(3) NAME
explain_vsprintf_or_die - formatted output conversion and report errors SYNOPSIS
#include <libexplain/vsprintf.h> int explain_vsprintf_or_die(char *data, const char *format, va_list ap); int explain_vsprintf_on_error(char *data, const char *format, va_list ap); DESCRIPTION
The explain_vsprintf_or_die function is used to call the vsprintf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_vsprintf(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_vsprintf_on_error function is used to call the vsprintf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_vsprintf(3) function, but still returns to the caller. data The data, exactly as to be passed to the vsprintf(3) system call. format The format, exactly as to be passed to the vsprintf(3) system call. ap The ap, exactly as to be passed to the vsprintf(3) system call. RETURN VALUE
The explain_vsprintf_or_die function only returns on success, see vsprintf(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_vsprintf_on_error function always returns the value return by the wrapped vsprintf(3) system call. EXAMPLE
The explain_vsprintf_or_die function is intended to be used in a fashion similar to the following example: int result = explain_vsprintf_or_die(data, format, ap); SEE ALSO
vsprintf(3) formatted output conversion explain_vsprintf(3) explain vsprintf(3) errors exit(2) terminate the calling process COPYRIGHT
libexplain version 0.52 Copyright (C) 2010 Peter Miller explain_vsprintf_or_die(3)
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explain_setvbuf_or_die(3) Library Functions Manual explain_setvbuf_or_die(3) NAME
explain_setvbuf_or_die - stream buffering operations and report errors SYNOPSIS
#include <libexplain/setvbuf.h> void explain_setvbuf_or_die(FILE *fp, char *data, int mode, size_t size); int explain_setvbuf_on_error(FILE *fp, char *data, int mode, size_t size); DESCRIPTION
The explain_setvbuf_or_die function is used to call the setvbuf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_setvbuf(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_setvbuf_on_error function is used to call the setvbuf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_setvbuf(3) function, but still returns to the caller. fp The fp, exactly as to be passed to the setvbuf(3) system call. data The data, exactly as to be passed to the setvbuf(3) system call. mode The mode, exactly as to be passed to the setvbuf(3) system call. size The size, exactly as to be passed to the setvbuf(3) system call. RETURN VALUE
The explain_setvbuf_or_die function only returns on success, see setvbuf(3) for more information. On failure, prints an explanation and exits, it does not return. The explain_setvbuf_on_error function always returns the value return by the wrapped setvbuf(3) system call. EXAMPLE
The explain_setvbuf_or_die function is intended to be used in a fashion similar to the following example: explain_setvbuf_or_die(fp, data, mode, size); SEE ALSO
setvbuf(3) stream buffering operations explain_setvbuf(3) explain setvbuf(3) errors exit(2) terminate the calling process COPYRIGHT
libexplain version 0.52 Copyright (C) 2010 Peter Miller explain_setvbuf_or_die(3)