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glibc  2.9
Defines | Functions
scanf15.c File Reference
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>

Go to the source code of this file.

Defines

#define _XOPEN_SOURCE   600
#define u_char   unsigned char
#define u_short   unsigned short
#define u_int   unsigned int
#define u_long   unsigned long
#define FAIL()

Functions

int main (void)

Define Documentation

#define _XOPEN_SOURCE   600

Definition at line 2 of file scanf15.c.

#define FAIL ( )
Value:
do {                                             \
    result = 1;                                         \
    printf ("test at line %d failed\n", __LINE__);      \
  } while (0)

Definition at line 14 of file scanf15.c.

#define u_char   unsigned char

Definition at line 5 of file scanf15.c.

#define u_int   unsigned int

Definition at line 7 of file scanf15.c.

#define u_long   unsigned long

Definition at line 8 of file scanf15.c.

#define u_short   unsigned short

Definition at line 6 of file scanf15.c.


Function Documentation

int main ( void  )

Definition at line 21 of file scanf15.c.

{
  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 ();
  if (sscanf (" 1.25s x", "%as%2c", &f, c) != 2)
    FAIL ();
  else if (f != 1.25 || memcmp (c, " x", 2) != 0)
    FAIL ();
  if (sscanf (" 2.25s x", "%las%2c", &d, c) != 2)
    FAIL ();
  else if (d != 2.25 || memcmp (c, " x", 2) != 0)
    FAIL ();
  if (sscanf (" 3.25S x", "%4aS%2c", &f, c) != 2)
    FAIL ();
  else if (f != 3.25 || memcmp (c, " x", 2) != 0)
    FAIL ();
  if (sscanf (" 4.25[0-9.] x", "%a[0-9.]%2c", &f, c) != 2)
    FAIL ();
  else if (f != 4.25 || memcmp (c, " x", 2) != 0)
    FAIL ();
  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-scanf15.XXXXXX"];
  sprintf (fname, "%s/tst-scanf15.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 ();
      if (fscanf (fp, "%as%2c", &f, c) != 2)
       FAIL ();
      else if (f != 1.25 || memcmp (c, " x", 2) != 0)
       FAIL ();

      if (freopen (fname, "r", stdin) == NULL)
       FAIL ();
      else
       {
         if (scanf ("%as%2c", &f, c) != 2)
           FAIL ();
         else if (f != 1.25 || memcmp (c, " x", 2) != 0)
           FAIL ();
       }

      fclose (fp);
    }

  remove (fname);

  return result;
}

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