1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2017-2020 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #include <stdio.h> 19 20 static size_t total_bytes = 0; 21 22 int 23 main () 24 { 25 int i = 0; 26 27 /* When testing with "target remote |", stdout is a pipe, and thus 28 block buffered by default. Force it to be line buffered. */ 29 setvbuf (stdout, NULL, _IOLBF, 0); 30 31 /* This outputs > 70 KB which is larger than the default pipe buffer 32 size on most systems (typically 16 KB or 64 KB). */ 33 for (i = 0; i < 3000; i++) 34 total_bytes += printf ("this is line number %d\n", i); 35 36 printf ("total bytes written = %u\n", (unsigned) total_bytes); 37 return 0; /* printing done */ 38 } 39