[PATCH v6] tests for fenv.h functions

[Gedare Bloom]

Hi Eshan,

This is looking good. Did you compile it? Execute it?  How was the output?

On Sat, Mar 7, 2020 at 6:51 AM Eshan dhawan <eshandhawan51 at gmail.com> wrote:
>
> ---
>  testsuites/psxtests/psxfenv01/init.c | 89 ++++++++++++++++++++++------
>  1 file changed, 71 insertions(+), 18 deletions(-)
>
> diff --git a/testsuites/psxtests/psxfenv01/init.c b/testsuites/psxtests/psxfenv01/init.c
> index cdb0fa596e..6d71463465 100644
> --- a/testsuites/psxtests/psxfenv01/init.c
> +++ b/testsuites/psxtests/psxfenv01/init.c
> @@ -46,11 +46,12 @@
>  #include <string.h>
>  #include <rtems/test.h>
>  #include <tmacros.h>
> +#include <float.h>
>
>  const char rtems_test_name[] = "PSXFENV 01";
>
>  /* forward declarations to avoid warnings */
> -rtems_task Init(rtems_task_argument ignored);
> +rtems_task Init( rtems_task_argument ignored );
>
>  /* Test Function Begins */
>  rtems_task Init(rtems_task_argument ignored)
> @@ -62,28 +63,31 @@ rtems_task Init(rtems_task_argument ignored)
>
>    /*
>     * 'FE_ALL_EXCEPT' will be defined only when 'feclearexcept()',
> -   * 'fegetexceptflag()', 'feraiseexcept()', 'fesetexceptflag()' and
> -   * 'fetestexcept()' functions are supported by the architecture.
> +   * fegetexceptflag() , feraiseexcept(), fesetexceptflag() and
> +   * fetestexcept() functions are supported by the architecture.
>     * Hence their testcases can be wrapped under #ifdef and #endif.
>     */
>    #ifdef FE_ALL_EXCEPT /* floating-point exceptions */
>      puts( "fesetenv(FE_DFL_ENV)." );
> -    r = fesetenv(FE_DFL_ENV);
> -    if (r)
> +    r = fesetenv ( FE_DFL_ENV );
> +    if ( r ) {
>        printf("fesetenv ==> %d\n", r);
> -    rtems_test_assert( r == 0 );
> +    }
> +    rtems_test_assert ( r == 0 );
>
> -    /* Test 'feclearexcept()' and 'fetestexcept()' in one go. */
> -    puts( "feclearexcept(FE_ALL_EXCEPT)." );
> -    r = feclearexcept(FE_ALL_EXCEPT);
> -    if (r)
> +    /* Test feclearexcept() and fetestexcept() in one go. */
> +    puts( "feclearexcept(FE_ALL_EXCEPT)" );
> +    r = feclearexcept ( FE_ALL_EXCEPT );
> +    if ( r ) {
>        printf("feclearexcept ==> 0x%x\n", r);
> -    rtems_test_assert( r == 0 );
> +    }
> +    rtems_test_assert ( r == 0 );
>
> -    r = fetestexcept( FE_ALL_EXCEPT );
> -    if (r)
> +    r = fetestexcept ( FE_ALL_EXCEPT );
> +    if ( r ) {
>        printf("fetestexcept ==> 0x%x\n", r);
> -    rtems_test_assert( r == 0 );
> +    }
> +    rtems_test_assert ( r == 0 );
>
>      /* Test 'FE_DIVBYZERO' */
>      puts( "Divide by zero and confirm fetestexcept()" );
> @@ -91,11 +95,60 @@ 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 separated 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);
> +    r = feraiseexcept ( FE_DIVBYZERO ) ;
>      rtems_test_assert( fetestexcept( FE_DIVBYZERO ) );
>  #endif
>
> --
> 2.17.1
>
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