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#include "common.hpp"
#include <fpm/math.hpp>
TEST(manipulation, copysign)
{
using P = fpm::fixed_24_8;
EXPECT_EQ(P(-13.125), copysign(P(-13.125), P(-7.25)));
EXPECT_EQ(P(-13.125), copysign(P( 13.125), P(-7.25)));
EXPECT_EQ(P( 13.125), copysign(P(-13.125), P( 7.25)));
EXPECT_EQ(P( 13.125), copysign(P( 13.125), P( 7.25)));
EXPECT_EQ(P(-13), copysign(P(-13), P(-7)));
EXPECT_EQ(P(-13), copysign(P( 13), P(-7)));
EXPECT_EQ(P( 13), copysign(P(-13), P( 7)));
EXPECT_EQ(P( 13), copysign(P( 13), P( 7)));
}
TEST(manipulation, nextafter)
{
using P = fpm::fixed_16_16;
EXPECT_EQ(P(2.5), nextafter(P(2.5), P(2.5)));
EXPECT_EQ(P(-2.5), nextafter(P(-2.5), P(-2.5)));
EXPECT_EQ(P::from_raw_value(1), nextafter(P(0), std::numeric_limits<P>::max()));
EXPECT_EQ(P::from_raw_value(0x10001), nextafter(P(1), P(10)));
EXPECT_EQ(P::from_raw_value(-0x0ffff), nextafter(P(-1), P(10)));
EXPECT_EQ(P::from_raw_value(-1), nextafter(P(0), std::numeric_limits<P>::min()));
EXPECT_EQ(P::from_raw_value(0x0ffff), nextafter(P(1), P(-10)));
EXPECT_EQ(P::from_raw_value(-0x10001), nextafter(P(-1), P(-10)));
}
TEST(manipulation, nexttoward)
{
using P = fpm::fixed_16_16;
EXPECT_EQ(P(2.5), nexttoward(P(2.5), P(2.5)));
EXPECT_EQ(P(-2.5), nexttoward(P(-2.5), P(-2.5)));
EXPECT_EQ(P::from_raw_value(1), nexttoward(P(0), std::numeric_limits<P>::max()));
EXPECT_EQ(P::from_raw_value(0x10001), nexttoward(P(1), P(10)));
EXPECT_EQ(P::from_raw_value(-0x0ffff), nexttoward(P(-1), P(10)));
EXPECT_EQ(P::from_raw_value(-1), nexttoward(P(0), std::numeric_limits<P>::min()));
EXPECT_EQ(P::from_raw_value(0x0ffff), nexttoward(P(1), P(-10)));
EXPECT_EQ(P::from_raw_value(-0x10001), nexttoward(P(-1), P(-10)));
}
TEST(manipulation, modf)
{
using P = fpm::fixed_16_16;
P integral;
EXPECT_EQ(P(0), modf(P(0), &integral));
EXPECT_EQ(P(0), integral);
EXPECT_EQ(P(0.25), modf(P(12.25), &integral));
EXPECT_EQ(P(12), integral);
EXPECT_EQ(P(-0.25), modf(P(-12.25), &integral));
EXPECT_EQ(P(-12), integral);
}
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