math: add special case test vectors

[libc-test] / src / math / special / llround.h

diff --git a/src/math/special/llround.h b/src/math/special/llround.h
new file mode 100644 (file)
index 0000000..8f9694e
--- /dev/null
+++ b/src/math/special/llround.h
@@ -0,0 +1,18 @@
+T(RN,                  0x0p+0,           0, 0)
+T(RN,                 -0x0p+0,           0, 0)
+T(RN,                  0x1p-1,           1, INEXACT)
+T(RN,                 -0x1p-1,          -1, INEXACT)
+T(RN,                  0x1p+0,           1, 0)
+T(RN,                 -0x1p+0,          -1, 0)
+T(RN,             0x1.0001p+0,           1, INEXACT)
+T(RN,            -0x1.0001p+0,          -1, INEXACT)
+T(RN,             0x1.ffffp-1,           1, INEXACT)
+T(RN,            -0x1.ffffp-1,          -1, INEXACT)
+T(RN,                0x1p-100,           0, INEXACT)
+T(RN,               -0x1p-100,           0, INEXACT)
+// TODO: return value is unspecified
+T(RN,                     nan, -2147483648, INVALID)
+T(RN,                     inf, -2147483648, INVALID)
+T(RN,                    -inf, -2147483648, INVALID)
+T(RN,                0x1p+100, -2147483648, INVALID)
+T(RN,               -0x1p+100, -2147483648, INVALID)