diff options
Diffstat (limited to 'REORG.TODO/stdio-common/scanf14.c')
| -rw-r--r-- | REORG.TODO/stdio-common/scanf14.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/scanf14.c b/REORG.TODO/stdio-common/scanf14.c new file mode 100644 index 0000000000..2bcd9c9893 --- /dev/null +++ b/REORG.TODO/stdio-common/scanf14.c @@ -0,0 +1,137 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +#include <libc-diag.h> + +#define FAIL() \ + do { \ + result = 1; \ + printf ("test at line %d failed\n", __LINE__); \ + } while (0) + +int +main (void) +{ + wchar_t *lsp; + char *sp; + float f; + double d; + char c[8]; + int result = 0; + + if (sscanf (" 0.25s x", "%e%3c", &f, c) != 2) + FAIL (); + else if (f != 0.25 || memcmp (c, "s x", 3) != 0) + FAIL (); + /* GCC in C99 mode treats %a as the C99 format expecting float *, + but glibc with _GNU_SOURCE treats %as as the GNU allocation + extension, so resulting in "warning: format '%a' expects argument + of type 'float *', but argument 3 has type 'char **'". This + applies to the other %as, %aS and %a[] formats below as well. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); + if (sscanf (" 1.25s x", "%as%2c", &sp, c) != 2) + FAIL (); + else + { + if (strcmp (sp, "1.25s") != 0 || memcmp (c, " x", 2) != 0) + FAIL (); + memset (sp, 'x', sizeof "1.25s"); + free (sp); + } + DIAG_POP_NEEDS_COMMENT; + if (sscanf (" 2.25s x", "%las%2c", &d, c) != 2) + FAIL (); + else if (d != 2.25 || memcmp (c, " x", 2) != 0) + FAIL (); + /* See explanation above. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); + if (sscanf (" 3.25S x", "%4aS%3c", &lsp, c) != 2) + FAIL (); + else + { + if (wcscmp (lsp, L"3.25") != 0 || memcmp (c, "S x", 3) != 0) + FAIL (); + memset (lsp, 'x', sizeof L"3.25"); + free (lsp); + } + if (sscanf ("4.25[0-9.] x", "%a[0-9.]%8c", &sp, c) != 2) + FAIL (); + else + { + if (strcmp (sp, "4.25") != 0 || memcmp (c, "[0-9.] x", 8) != 0) + FAIL (); + memset (sp, 'x', sizeof "4.25"); + free (sp); + } + DIAG_POP_NEEDS_COMMENT; + if (sscanf ("5.25[0-9.] x", "%la[0-9.]%2c", &d, c) != 2) + FAIL (); + else if (d != 5.25 || memcmp (c, " x", 2) != 0) + FAIL (); + + const char *tmpdir = getenv ("TMPDIR"); + if (tmpdir == NULL || tmpdir[0] == '\0') + tmpdir = "/tmp"; + + char fname[strlen (tmpdir) + sizeof "/tst-scanf14.XXXXXX"]; + sprintf (fname, "%s/tst-scanf14.XXXXXX", tmpdir); + if (fname == NULL) + FAIL (); + + /* Create a temporary file. */ + int fd = mkstemp (fname); + if (fd == -1) + FAIL (); + + FILE *fp = fdopen (fd, "w+"); + if (fp == NULL) + FAIL (); + else + { + if (fputs (" 1.25s x", fp) == EOF) + FAIL (); + if (fseek (fp, 0, SEEK_SET) != 0) + FAIL (); + /* See explanation above. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); + if (fscanf (fp, "%as%2c", &sp, c) != 2) + FAIL (); + else + { + if (strcmp (sp, "1.25s") != 0 || memcmp (c, " x", 2) != 0) + FAIL (); + memset (sp, 'x', sizeof "1.25s"); + free (sp); + } + DIAG_POP_NEEDS_COMMENT; + + if (freopen (fname, "r", stdin) == NULL) + FAIL (); + else + { + /* See explanation above. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat"); + if (scanf ("%as%2c", &sp, c) != 2) + FAIL (); + else + { + if (strcmp (sp, "1.25s") != 0 || memcmp (c, " x", 2) != 0) + FAIL (); + memset (sp, 'x', sizeof "1.25s"); + free (sp); + } + DIAG_POP_NEEDS_COMMENT; + } + + fclose (fp); + } + + remove (fname); + + return result; +} |