X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/76ddf2528f029c970be3fd1d08659452b1842ae8..bfffef69e1b0554d13eec920f1a32f75b49ceac6:/include/xbt/system_error.hpp

diff --git a/include/xbt/system_error.hpp b/include/xbt/system_error.hpp
index 4a2ae7ae44..c94eaff884 100644
--- a/include/xbt/system_error.hpp
+++ b/include/xbt/system_error.hpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2016. The SimGrid Team.
+/* Copyright (c) 2016-2023. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -11,13 +11,12 @@
 #ifndef SIMGRID_MC_SYSTEM_ERROR_HPP
 #define SIMGRID_MC_SYSTEM_ERROR_HPP
 
-namespace simgrid {
-namespace xbt {
+namespace simgrid::xbt {
 
 /** A `error_category` suitable to be used with `errno`
  *
  *  It is not clear which error we are supposed to generate
- *  when getting a errno:
+ *  when getting an errno:
  *
  *  * `system_error` clearly cannot be used for this on Windows;
  *
@@ -43,6 +42,15 @@ std::error_code errno_code(int errnum)
   return std::error_code(errnum, errno_category());
 }
 
+/** Create an `error_code` from `errno` (and clear it) */
+inline
+std::error_code errno_code()
+{
+  int errnum = errno;
+  errno = 0;
+  return errno_code(errnum);
+}
+
 /** Create a `system_error` from an `errno` value
  *
  *  This is expected to to whatever is right to create a
@@ -60,7 +68,19 @@ std::system_error errno_error(int errnum, const char* what)
   return std::system_error(errno_code(errnum), what);
 }
 
+/** Create a `system_code` from `errno` (and clear it) */
+inline
+std::system_error errno_error()
+{
+  return std::system_error(errno_code());
 }
+
+inline
+std::system_error errno_error(const char* what)
+{
+  return std::system_error(errno_code(), what);
 }
 
+} // namespace simgrid::xbt
+
 #endif