libc/test/src/math/exhaustive/sqrtf_test.cpp

   1 //===-- Exhaustive test for sqrtf -----------------------------------------===//
   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 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===---------------------------------------------------------------------===//
   8
   9 #include "src/__support/FPUtil/FPBits.h"
  10 #include "src/math/sqrtf.h"
  11 #include "utils/MPFRWrapper/MPFRUtils.h"
  12 #include <math.h>
  13
  14 using FPBits = __llvm_libc::fputil::FPBits<float>;
  15
  16 namespace mpfr = __llvm_libc::testing::mpfr;
  17
  18 TEST(LlvmLibcSqrtfExhaustiveTest, AllValues) {
  19   uint32_t bits = 0;
  20   do {
  21     FPBits xbits(bits);
  22     float x = float(xbits);
  23     ASSERT_MPFR_MATCH(mpfr::Operation::Sqrt, x, __llvm_libc::sqrtf(x), 0.5);
  24   } while (bits++ < 0xffff'ffffU);
  25 }