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