diff options
Diffstat (limited to 'sim/testsuite/cris/c/append1.c')
-rw-r--r-- | sim/testsuite/cris/c/append1.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sim/testsuite/cris/c/append1.c b/sim/testsuite/cris/c/append1.c new file mode 100644 index 0000000..0acd59d --- /dev/null +++ b/sim/testsuite/cris/c/append1.c @@ -0,0 +1,51 @@ +/* Check regression of a bug uncovered by the libio tFile test (old + libstdc++, pre-gcc-3.x era), where appending to a file doesn't work. + The default open-flags-mapping does not match Linux/CRIS, so a + specific mapping is necessary. */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +int +main (void) +{ + FILE *f; + const char fname[] = "sk1test.dat"; + const char tsttxt1[] + = "This is the first and only line of this file.\n"; + const char tsttxt2[] = "Now there is a second line.\n"; + char buf[sizeof (tsttxt1) + sizeof (tsttxt2) - 1] = ""; + + f = fopen (fname, "w+"); + if (f == NULL + || fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1) + || fclose (f) != 0) + { + printf ("fail\n"); + exit (1); + } + + f = fopen (fname, "a+"); + if (f == NULL + || fwrite (tsttxt2, 1, strlen (tsttxt2), f) != strlen (tsttxt2) + || fclose (f) != 0) + { + printf ("fail\n"); + exit (1); + } + + f = fopen (fname, "r"); + if (f == NULL + || fread (buf, 1, sizeof (buf), f) != sizeof (buf) - 1 + || strncmp (buf, tsttxt1, strlen (tsttxt1)) != 0 + || strncmp (buf + strlen (tsttxt1), tsttxt2, strlen (tsttxt2)) != 0 + || fclose (f) != 0) + { + printf ("fail\n"); + exit (1); + } + + printf ("pass\n"); + exit (0); +} |