1 files changed, 47 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/seterr.h b/cpukit/score/include/rtems/seterr.h
new file mode 100644
index 0000000000..9eb4295554
--- /dev/null
+++ b/cpukit/score/include/rtems/seterr.h
@@ -0,0 +1,47 @@
+/**
+ *  @file  rtems/seterr.h
+ *
+ *  This file contains macros and definitions which ease the burden
+ *  of consistently setting errno and returning -1.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2006.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#ifndef _RTEMS_SETERR_H
+#define _RTEMS_SETERR_H
+
+#include <errno.h>
+
+/**
+ *  This is a helper macro which will set the variable errno and return
+ *  -1 to the caller.  This pattern is common to many POSIX methods.
+ *
+ *  @param[in] _error is the error code
+ */
+#define rtems_set_errno_and_return_minus_one( _error ) \
+  do { errno = (_error); return -1; } while(0)
+
+/**
+ *  This is a helper macro which will set the variable errno and return
+ *  -1 to the caller.  This pattern is common to many POSIX methods.
+ *
+ *  @param[in] _error is the error code
+ *  @param[in] _cast is the type to which -1 must be cast
+ *
+ *  @note It is similar to @ref rtems_set_errno_and_return_minus_one but
+ *        this -1 value is cast to something other than an int.
+ */
+#define rtems_set_errno_and_return_minus_one_cast( _error, _cast ) \
+  do { errno = (_error); return (_cast) -1; } while(0)
+
+#endif
+/* end of include file */