//We are including stdlib.h and stddef.h first because under MSVC

 //those headers contains a errno macro definition without the underlying value

 //definition.

 #include <stdlib.h>

 #include <stddef.h>

 #include <errno.h>

 #include <errno.h> // not typo, check errno def/undef/redef

 #ifndef _STLP_WCE

 #include "cppunit/cppunit_proxy.h"

 //

 // TestCase class

 //

 class ErrnoTest : public CPPUNIT_NS::TestCase

 {

   CPPUNIT_TEST_SUITE(ErrnoTest);

   CPPUNIT_TEST(check);

   CPPUNIT_TEST_SUITE_END();

 protected:

   void check();

 };

 CPPUNIT_TEST_SUITE_REGISTRATION(ErrnoTest);

 void ErrnoTest::check()

 {

   //We are using ERANGE as it is part of the C++ ISO (see Table 26 in section 19.3)

   //Using ERANGE improve the test as it means that the native errno.h file has really

   //been included.

   errno = ERANGE;

   CPPUNIT_ASSERT( errno == ERANGE );

   errno = 0;

 /* Note: in common, you can't write ::errno or std::errno,

  * due to errno in most cases is just a macro, that frequently

  * (in MT environment errno is a per-thread value) expand to something like

  * (*__errno_location()). I don't know way how masquerade such

  * things: name of macro can't include ::.

  *

  *                - ptr, 2005-03-30

  */

 # if 0

   if ( ::errno != 0 ) {

     return 1;

   }

   if ( std::errno != 0 ) {

     return 1;

   }

 # endif

 }

 #endif // _STLP_WCE