include/crt/unistd.h

   1 /*
   2  * This file is part of the Mingw32 package.
   3  *
   4  * unistd.h maps (roughly) to io.h
   5  */
   6
   7 #ifndef _UNISTD_H
   8 #define _UNISTD_H
   9
  10 #include <io.h>
  11 #include <process.h>
  12
  13 #define __UNISTD_GETOPT__
  14 #include <getopt.h>
  15 #undef __UNISTD_GETOPT__
  16
  17 /* These are also defined in stdio.h. */
  18 #ifndef SEEK_SET
  19 #define SEEK_SET 0
  20 #endif
  21
  22 #ifndef SEEK_CUR
  23 #define SEEK_CUR 1
  24 #endif
  25
  26 #ifndef SEEK_END
  27 #define SEEK_END 2
  28 #endif
  29
  30 #ifdef __cplusplus
  31 extern "C" {
  32 #endif
  33
  34
  35 /* This is defined as a real library function to allow autoconf
  36    to verify its existence. */
  37 int ftruncate(int, off_t);
  38 __CRT_INLINE int ftruncate(int __fd, off_t __length)
  39 {
  40   return _chsize (__fd, __length);
  41 }
  42
  43 #ifdef __cplusplus
  44 }
  45 #endif
  46
  47 #endif /* _UNISTD_H */