Add test for +0.0f underflow output.

lntue · lntue · commit e102c0aecec6 · 2024-10-18T04:10:46.000Z
diff --git a/libc/test/src/math/smoke/powf_test.cpp b/libc/test/src/math/smoke/powf_test.cpp
@@ -192,4 +192,5 @@ TEST_F(LlvmLibcPowfTest, SpecialNumbers) {
   }
 
   EXPECT_FP_EQ(-0.0f, LIBC_NAMESPACE::powf(-0.015625f, 25.0f));
+  EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::powf(-0.015625f, 26.0f));
 }

Original file line number	Diff line number	Diff line change
`@@ -192,4 +192,5 @@ TEST_F(LlvmLibcPowfTest, SpecialNumbers) {`
`192`	`192`	`}`
`193`	`193`
`194`	`194`	`EXPECT_FP_EQ(-0.0f, LIBC_NAMESPACE::powf(-0.015625f, 25.0f));`
	`195`	`+ EXPECT_FP_EQ(0.0f, LIBC_NAMESPACE::powf(-0.015625f, 26.0f));`
`195`	`196`	`}`