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xt_ff_printf(3) Library Functions Manual xt_ff_printf(3) NAME xt_ff_printf() - Print formatted data to a fast file stream LIBRARY #include <xtend/fast-file.h> -lxtend SYNOPSIS int xt_ff_printf(xt_ff_t *stream, const char *format, ...) ARGUMENTS stream Pointer to an xt_ff_t object opened by xt_ff_open(3) format Format string indicating how remaining arguments are printed DESCRIPTION xt_ff_printf(3) writes formatted data to a xt_ff_t stream the same was as fprintf(3) writes to a FILE stream. The xt_ff_ile_t system is simpler than and much faster than traditional FILE on typical systems. It is intended for processing large files charac- ter-by-character, where low-level block I/O is not convenient, but FILE I/O causes a bottleneck. RETURN VALUES The number of characters written EXAMPLES xt_ff_ile_t *stream; int count = 1; if ( (stream = xt_ff_open(filename, O_WRONLY|O_CREAT|O_TRUNC)) == NULL ) { fprintf(stderr, "Could not open %s.n", filename); exit(EX_CANTCREAT); } xt_ff_printf(stream, "%dn", count); xt_ff_close(stream); SEE ALSO fprintf(3), xt_ff_open(3), xt_ff_close(3), xt_ff_putc(3), xt_ff_puts(3) xt_ff_printf(3)
NAME | LIBRARY | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO
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