Correct tolerances in float16 test

OSGeo · Jan 28, 2025 · ee58a50 · ee58a50
1 parent 3454bd9
commit ee58a50
Showing 1 changed file with 8 additions and 5 deletions.
diff --git a/autotest/cpp/testfloat16.cpp b/autotest/cpp/testfloat16.cpp
@@ -86,12 +86,13 @@ TEST(TestFloat16, arithmetic)
 
             EXPECT_EQ(GFloat16(x) + GFloat16(y), x + y);
             EXPECT_EQ(GFloat16(x) - GFloat16(y), x - y);
+            using std::fabs;
             EXPECT_NEAR(GFloat16(x) * GFloat16(y), x * y,
-                        std::fabs(x * y / 1024));
+                        fabs(x * y / 1024));
             if (j != 0)
             {
                 EXPECT_NEAR(GFloat16(x) / GFloat16(y), x / y,
-                            std::fabs(x / y / 1024));
+                            fabs(x / y / 1024));
             }
         }
     }
@@ -130,8 +131,9 @@ TEST(TestFloat16, math)
         EXPECT_EQ(isnan(GFloat16(x)), isnan(x));
         using std::abs;
         EXPECT_EQ(abs(GFloat16(x)), abs(x));
+        using std::fabs;
         using std::cbrt;
-        EXPECT_NEAR(cbrt(GFloat16(x)), cbrt(x), std::fabs(cbrt(x) / 1024));
+        EXPECT_NEAR(cbrt(GFloat16(x)), cbrt(x), fabs(cbrt(x) / 1024));
         using std::ceil;
         EXPECT_EQ(ceil(GFloat16(x)), ceil(x));
         using std::fabs;
@@ -143,7 +145,7 @@ TEST(TestFloat16, math)
         if (x >= 0)
         {
             using std::sqrt;
-            EXPECT_NEAR(sqrt(GFloat16(x)), sqrt(x), std::fabs(sqrt(x) / 1024));
+            EXPECT_NEAR(sqrt(GFloat16(x)), sqrt(x), fabs(sqrt(x) / 1024));
         }
     }
 
@@ -166,7 +168,8 @@ TEST(TestFloat16, math)
             EXPECT_EQ(min(GFloat16(x), GFloat16(y)), GFloat16(min(x, y)));
             using std::pow;
             EXPECT_EQ(pow(GFloat16(x), GFloat16(y)), GFloat16(pow(x, y)));
-            EXPECT_NEAR(pow(GFloat16(x), j), GFloat16(pow(x, j)));
+            using std::fabs;
+            EXPECT_NEAR(pow(GFloat16(x), j), GFloat16(pow(x, j)), fabs(pow(x, j) / 1024));
         }
     }
 }