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| va_usage(3) | FreeBSD Library Functions Manual | va_usage(3) |
LIBRARY
#include <xtend/proc.h> -lxtend
SYNOPSIS
void va_usage(const char *format_string, ...)
ARGUMENTS
format_string: printf-style format string Additional arguments to match placeholders in format_string
DESCRIPTION
va_usage() is a simple convenience function that takes a printf-style variable argument list, prints a message to stderr, and terminates the proces with an exit status of EX_USAGE. The message should indicate correct command-line usage of the calling program as conventional for Unix commands.RETURN VALUES
Does not return, terminates the calling processSEE ALSO
printf(3), vfprintf(3), exit(3), sysexits(3)
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