libc/test/include/issignaling_test.c

   1 //===-- Unittests for issignaling macro -----------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDSList-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 int issignaling(double);
   9 int issignalingf(float);
  10 int issignalingl(long double);
  11
  12 #include "include/llvm-libc-macros/math-function-macros.h"
  13
  14 #include <assert.h>
  15
  16 // check if macro is defined
  17 #ifndef issignaling
  18 #error "issignaling macro is not defined"
  19 #else
  20 int main(void) {
  21   assert(issignaling(__builtin_nans("")) == 1);
  22   assert(issignaling(__builtin_nansf("")) == 1);
  23   assert(issignaling(__builtin_nansl("")) == 1);
  24   assert(issignaling(1.819f) == 0);
  25   assert(issignaling(-1.726) == 0);
  26   assert(issignaling(1.426L) == 0);
  27   return 0;
  28 }
  29 #endif