You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
3.1 KiB
83 lines
3.1 KiB
/**************************************************************************** |
|
* examples/nxflat/tests/errno/errno.c |
|
* |
|
* Copyright (C) 2009 Gregory Nutt. All rights reserved. |
|
* Author: Gregory Nutt <gnutt@nuttx.org> |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions |
|
* are met: |
|
* |
|
* 1. Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* 2. Redistributions in binary form must reproduce the above copyright |
|
* notice, this list of conditions and the following disclaimer in |
|
* the documentation and/or other materials provided with the |
|
* distribution. |
|
* 3. Neither the name NuttX nor the names of its contributors may be |
|
* used to endorse or promote products derived from this software |
|
* without specific prior written permission. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|
* POSSIBILITY OF SUCH DAMAGE. |
|
* |
|
****************************************************************************/ |
|
|
|
/**************************************************************************** |
|
* Included Files |
|
****************************************************************************/ |
|
|
|
#include <stdio.h> |
|
#include <stdlib.h> |
|
#include <errno.h> |
|
|
|
/**************************************************************************** |
|
* Included Files |
|
****************************************************************************/ |
|
|
|
static const char g_nonexistent[] = "aflav-sautga-ay"; |
|
|
|
/**************************************************************************** |
|
* Public Functions |
|
****************************************************************************/ |
|
|
|
int main(int argc, char **argv) |
|
{ |
|
FILE *test_stream; |
|
|
|
/* Try using stdout and stderr explicitly. These are global variables |
|
* exported from the base code. |
|
*/ |
|
|
|
fprintf(stdout, "Hello, World on stdout\n"); |
|
fprintf(stderr, "Hello, World on stderr\n"); |
|
|
|
/* Try opening a non-existent file using buffered IO. */ |
|
|
|
test_stream = fopen(g_nonexistent, "r"); |
|
if (test_stream) |
|
{ |
|
fprintf(stderr, "Hmm... Delete \"%s\" and try this again\n", |
|
g_nonexistent); |
|
exit(1); |
|
} |
|
|
|
/* Now print the errno on stderr. Errno is also a global |
|
* variable exported by the base code. |
|
*/ |
|
|
|
fprintf(stderr, "We failed to open \"%s!\" errno is %d\n", |
|
g_nonexistent, errno); |
|
|
|
return 0; |
|
}
|
|
|