sys/external/bsd/compiler_rt/dist/test/Unit/subdf3vfp_test.c

   1 //===-- subdf3vfp_test.c - Test __subdf3vfp -------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file tests __subdf3vfp for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <math.h>
  17
  18
  19 #if __arm__
  20 extern double __subdf3vfp(double a, double b);
  21
  22 int test__subdf3vfp(double a, double b)
  23 {
  24     double actual = __subdf3vfp(a, b);
  25     double expected = a - b;
  26     if (actual != expected)
  27         printf("error in test__subdf3vfp(%f, %f) = %f, expected %f\n",
  28                a, b, actual, expected);
  29     return actual != expected;
  30 }
  31 #endif
  32
  33 int main()
  34 {
  35 #if __arm__
  36     if (test__subdf3vfp(1.0, 1.0))
  37         return 1;
  38     if (test__subdf3vfp(1234.567, 765.4321))
  39         return 1;
  40     if (test__subdf3vfp(-123.0, -678.0))
  41         return 1;
  42     if (test__subdf3vfp(0.0, -0.0))
  43         return 1;
  44 #else
  45     printf("skipped\n");
  46 #endif
  47     return 0;
  48 }