/* Based on code by Larry McVoy . */ #include #include #include #include #define V 12345678.12345678 static int do_test (void) { char buf[1024]; int result = 0; /* Testing printf_size_info requires using the deprecated register_printf_function, resulting in warnings "'register_printf_function' is deprecated". */ DIAG_PUSH_NEEDS_COMMENT; DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations"); /* Register the printf handlers. */ register_printf_function ('b', printf_size, printf_size_info); register_printf_function ('B', printf_size, printf_size_info); DIAG_POP_NEEDS_COMMENT; /* All of the formats here use the nonstandard extension specifier just registered, so compiler checking will never grok them. */ DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat-extra-args"); sprintf (buf, "%g %b %B %.0b %.0B %.1b %.1B %8.0b %08.0B", V, 1025., V, V, V, V, V, V, V, V); fputs (buf, stdout); if (strcmp (buf, "\ 1.23457e+07 1.001k 12.346M 12m 12M 11.8m 12.3M 12m 0000012M")) { result = 1; fputs (" -> WRONG\n", stdout); } else fputs (" -> OK\n", stdout); sprintf (buf, "%b|%B|%-20.2b|%-10.0b|%-10.8b|%-10.2B|", V, V, V, V, V, V, V, V, V, V, V); fputs (buf, stdout); if (strcmp (buf, "\ 11.774m|12.346M|11.77m |12m |11.77375614m|12.35M |")) { result = 1; fputs (" -> WRONG\n", stdout); } else fputs (" -> OK\n", stdout); sprintf (buf, "%#.0B %*.0b %10.*b %*.*B %10.2B", V, 2, V, 2, V, 10, 2, V, V); fputs (buf, stdout); if (strcmp (buf, "12.M 12m 11.77m 12.35M 12.35M")) { result = 1; fputs (" -> WRONG\n", stdout); } else fputs (" -> OK\n", stdout); sprintf (buf, "%6B %6.1B %b %B %b %B", V, V, 1000.0, 1000.0, 1024.0, 1024.0); fputs (buf, stdout); if (strcmp (buf, "12.346M 12.3M 1000.000 1.000K 1.000k 1.024K")) { result = 1; fputs (" -> WRONG\n", stdout); } else fputs (" -> OK\n", stdout); return result; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"