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//===-- Unittests for feclearexcept with exceptions enabled ---------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/fenv/feclearexcept.h"
#include "src/__support/FPUtil/FEnvUtils.h"
#include "utils/UnitTest/Test.h"
#include <fenv.h>
#include <stdint.h>
TEST(LlvmLibcFEnvTest, ClearTest) {
uint16_t excepts[] = {FE_DIVBYZERO, FE_INVALID, FE_INEXACT, FE_OVERFLOW,
FE_UNDERFLOW};
__llvm_libc::fputil::disableExcept(FE_ALL_EXCEPT);
__llvm_libc::fputil::clearExcept(FE_ALL_EXCEPT);
for (uint16_t e : excepts)
ASSERT_EQ(__llvm_libc::fputil::testExcept(e), 0);
__llvm_libc::fputil::raiseExcept(FE_ALL_EXCEPT);
for (uint16_t e : excepts) {
// We clear one exception and test to verify that it was cleared.
__llvm_libc::feclearexcept(e);
ASSERT_EQ(uint16_t(__llvm_libc::fputil::testExcept(FE_ALL_EXCEPT)),
uint16_t(FE_ALL_EXCEPT & ~e));
// After clearing, we raise the exception again.
__llvm_libc::fputil::raiseExcept(e);
}
for (uint16_t e1 : excepts) {
for (uint16_t e2 : excepts) {
__llvm_libc::feclearexcept(e1 | e2);
ASSERT_EQ(uint16_t(__llvm_libc::fputil::testExcept(FE_ALL_EXCEPT)),
uint16_t(FE_ALL_EXCEPT & ~(e1 | e2)));
__llvm_libc::fputil::raiseExcept(e1 | e2);
}
}
for (uint16_t e1 : excepts) {
for (uint16_t e2 : excepts) {
for (uint16_t e3 : excepts) {
__llvm_libc::feclearexcept(e1 | e2 | e3);
ASSERT_EQ(uint16_t(__llvm_libc::fputil::testExcept(FE_ALL_EXCEPT)),
uint16_t(FE_ALL_EXCEPT & ~(e1 | e2 | e3)));
__llvm_libc::fputil::raiseExcept(e1 | e2 | e3);
}
}
}
for (uint16_t e1 : excepts) {
for (uint16_t e2 : excepts) {
for (uint16_t e3 : excepts) {
for (uint16_t e4 : excepts) {
__llvm_libc::feclearexcept(e1 | e2 | e3 | e4);
ASSERT_EQ(uint16_t(__llvm_libc::fputil::testExcept(FE_ALL_EXCEPT)),
uint16_t(FE_ALL_EXCEPT & ~(e1 | e2 | e3 | e4)));
__llvm_libc::fputil::raiseExcept(e1 | e2 | e3 | e4);
}
}
}
}
for (uint16_t e1 : excepts) {
for (uint16_t e2 : excepts) {
for (uint16_t e3 : excepts) {
for (uint16_t e4 : excepts) {
for (uint16_t e5 : excepts) {
__llvm_libc::feclearexcept(e1 | e2 | e3 | e4 | e5);
ASSERT_EQ(uint16_t(__llvm_libc::fputil::testExcept(FE_ALL_EXCEPT)),
uint16_t(FE_ALL_EXCEPT & ~(e1 | e2 | e3 | e4 | e5)));
__llvm_libc::fputil::raiseExcept(e1 | e2 | e3 | e4 | e5);
}
}
}
}
}
}
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