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Add more libm unit tests and fixes

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See #61
This commit is contained in:
Justine Tunney 2021-03-02 13:57:23 -08:00
parent 32e289b1d8
commit 9367253b4d
15 changed files with 390 additions and 124 deletions
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14
test/libc/tinymath/powl_test.c
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@ -22,33 +22,35 @@
#include "libc/math.h"
#include "libc/runtime/gc.h"
#include "libc/runtime/pc.internal.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/testlib.h"
#include "libc/x/x.h"
double powa(double x, double y) {
return exp2(fmod(y * log2(x), 1)) * exp2(y);
}
TEST(powl, testLongDouble) {
EXPECT_TRUE(isnan(powl(-1, 1.1)));
EXPECT_STREQ("27", gc(xdtoal(powl(3, 3))));
EXPECT_STREQ("-27", gc(xdtoal(powl(-3, 3))));
EXPECT_STREQ("-1", gc(xdtoal(powl(-1, 1.1))));
EXPECT_STREQ("1e+4932", gc(xdtoal(powl(10, 4932))));
EXPECT_STREQ("INFINITY", gc(xdtoal(powl(10, 4933))));
EXPECT_STREQ("0", gc(xdtoal(powl(10, -5000))));
EXPECT_STREQ("1.063382396627933e+37", gc(xdtoal(powl(2, 123))));
/* .4248496805467504836322459796959084815827285786480897 */
EXPECT_STARTSWITH(".4248496805467504", gc(xdtoal(powl(0.7, 2.4))));
}
TEST(powl, testDouble) {
EXPECT_STREQ("27", gc(xdtoa(pow(3, 3))));
EXPECT_STREQ("-27", gc(xdtoa(pow(-3, 3))));
EXPECT_STREQ("1e+308", gc(xdtoa(pow(10, 308))));
EXPECT_STREQ("INFINITY", gc(xdtoa(pow(10, 309))));
EXPECT_STARTSWITH(".42484968054675", gc(xdtoa(pow(0.7, 2.4))));
}
TEST(powl, testFloat) {
EXPECT_STREQ("27", gc(xdtoaf(powf(3, 3))));
EXPECT_STREQ("-27", gc(xdtoaf(powf(-3, 3))));
EXPECT_STARTSWITH(".4248496", gc(xdtoa(powf(0.7f, 2.4f))));
}