[PATCH v4] tests for fenv.h functions

[Eshan dhawan]

---
 testsuites/psxtests/psxfenv01/init.c | 68 +++++++++++++++++++++++++---
 1 file changed, 62 insertions(+), 6 deletions(-)

diff --git a/testsuites/psxtests/psxfenv01/init.c b/testsuites/psxtests/psxfenv01/init.c
index cdb0fa596e..595d340983 100644
--- a/testsuites/psxtests/psxfenv01/init.c
+++ b/testsuites/psxtests/psxfenv01/init.c
@@ -46,6 +46,7 @@
 #include <string.h>
 #include <rtems/test.h>
 #include <tmacros.h>
+#include <float.h>
 
 const char rtems_test_name[] = "PSXFENV 01";
 
@@ -69,20 +70,23 @@ rtems_task Init(rtems_task_argument ignored)
   #ifdef FE_ALL_EXCEPT /* floating-point exceptions */
     puts( "fesetenv(FE_DFL_ENV)." );
     r = fesetenv(FE_DFL_ENV);
-    if (r)
+    if ( r ) {
       printf("fesetenv ==> %d\n", r);
+    }
     rtems_test_assert( r == 0 );
 
     /* Test 'feclearexcept()' and 'fetestexcept()' in one go. */
     puts( "feclearexcept(FE_ALL_EXCEPT)." );
     r = feclearexcept(FE_ALL_EXCEPT);
-    if (r)
+    if ( r ) {
       printf("feclearexcept ==> 0x%x\n", r);
+    }    
     rtems_test_assert( r == 0 );
 
     r = fetestexcept( FE_ALL_EXCEPT );
-    if (r)
+    if (r){
       printf("fetestexcept ==> 0x%x\n", r);
+    }
     rtems_test_assert( r == 0 );
 
     /* Test 'FE_DIVBYZERO' */
@@ -91,9 +95,59 @@ rtems_task Init(rtems_task_argument ignored)
     b = 1.0;
     c = b/a;
     (void) c;
-
-    fegetexceptflag(&excepts,FE_ALL_EXCEPT);
-
+    /* Test 'fegetexceptflag()' and 'fesetexceptflag()' */
+    r = fegetexceptflag( &excepts ,FE_ALL_EXCEPT );
+    if ( r ) {
+      printf("fegetexceptflag ==> 0x%x\n", r);
+    }
+    rtems_test_assert(r == 0);
+
+    r = fesetexceptflag( &excepts ,FE_ALL_EXCEPT );
+    if ( r ) {
+      printf("fesetexceptflag ==> 0x%x\n", r);
+    }
+    rtems_test_assert(r == 0);
+
+
+    /* Test for 'fegetround()' and 'fesetround()' 
+     * They have four main macros to be tested seperated by ifdef
+     * Since not all architectures support them 
+     * The test case gets and sets the rounding directions */
+#ifdef FE_TONEAREST
+    rtems_test_assert( fegetround() == FE_TONEAREST ) ;   
+#endif
+#ifdef FE_TOWARDZERO    
+  r = fesetround(FE_TOWARDZERO);
+  if( r ) {
+      printf("fesetround ==> 0x%x\n", r);     
+    } 
+  rtems_test_assert( r == 0 ) ;
+  rtems_test_assert( fegetround() == FE_TOWARDZERO ) ;
+#endif
+#ifdef FE_DOWNWARD
+  r = fesetround( FE_DOWNWARD );
+  if(r){
+      printf("fesetround ==> 0x%x\n", r);     
+    } 
+  rtems_test_assert( r == 0 ) ;
+  rtems_test_assert( fegetround() == FE_DOWNWARD ) ;
+#endif
+#ifdef FE_UPWARD
+  r = fesetround( FE_UPWARD );
+  if( r ) {
+      printf("fesetround ==> 0x%x\n", r);     
+    }   
+  rtems_test_assert( r == 0 ) ;
+  rtems_test_assert( fegetround() == FE_UPWARD ) ;
+#endif
+#ifdef FE_TONEAREST
+  r = fesetround( FE_TONEAREST );
+  if ( r ) {
+      printf("fesetround ==> 0x%x\n", r);
+    }     
+  rtems_test_assert( r == 0 ) ;
+#endif
+  
 #ifdef FE_DIVBYZERO
     r = feraiseexcept(FE_DIVBYZERO);
     rtems_test_assert( fetestexcept( FE_DIVBYZERO ) );
@@ -125,3 +179,5 @@ rtems_task Init(rtems_task_argument ignored)
 #define CONFIGURE_INIT
 #include <rtems/confdefs.h>
 /* end of file */
+
+
-- 
2.17.1