summaryrefslogtreecommitdiffstatshomepage
path: root/3rdparty/bx/tests/uint32_test.cpp
diff options
context:
space:
mode:
Diffstat (limited to '3rdparty/bx/tests/uint32_test.cpp')
-rw-r--r--3rdparty/bx/tests/uint32_test.cpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/3rdparty/bx/tests/uint32_test.cpp b/3rdparty/bx/tests/uint32_test.cpp
new file mode 100644
index 00000000000..3fe0044d67c
--- /dev/null
+++ b/3rdparty/bx/tests/uint32_test.cpp
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2010-2016 Branimir Karadzic. All rights reserved.
+ * License: https://github.com/bkaradzic/bx#license-bsd-2-clause
+ */
+
+#include "test.h"
+#include <bx/uint32_t.h>
+
+TEST(StrideAlign)
+{
+ CHECK(0 == bx::strideAlign(0, 12) );
+ for (uint32_t ii = 0; ii < 12; ++ii)
+ {
+ CHECK(12 == bx::strideAlign(ii+1, 12) );
+ }
+
+ CHECK(0 == bx::strideAlign16(0, 12) );
+ for (uint32_t ii = 0; ii < 12; ++ii)
+ {
+ CHECK(48 == bx::strideAlign16(ii+1, 12) );
+ }
+}
+
+TEST(uint32_cnt)
+{
+ CHECK( 0 == bx::uint32_cnttz(UINT32_C(1) ) );
+ CHECK( 0 == bx::uint32_cnttz_ref(UINT32_C(1) ) );
+
+ CHECK(31 == bx::uint32_cntlz(UINT32_C(1) ) );
+ CHECK(31 == bx::uint32_cntlz_ref(UINT32_C(1) ) );
+
+ CHECK( 0 == bx::uint64_cnttz(UINT64_C(1) ) );
+ CHECK( 0 == bx::uint64_cnttz_ref(UINT64_C(1) ) );
+
+ CHECK(63 == bx::uint64_cntlz(UINT64_C(1) ) );
+ CHECK(63 == bx::uint64_cntlz_ref(UINT64_C(1) ) );
+
+ CHECK( 1 == bx::uint32_cntbits(1) );
+ CHECK( 1 == bx::uint32_cntbits_ref(1) );
+
+ CHECK(16 == bx::uint32_cntbits(UINT16_MAX) );
+ CHECK(16 == bx::uint32_cntbits_ref(UINT16_MAX) );
+
+ CHECK(32 == bx::uint32_cntbits(UINT32_MAX) );
+ CHECK(32 == bx::uint32_cntbits_ref(UINT32_MAX) );
+}
+
+TEST(uint32_part)
+{
+ CHECK(UINT32_C(0x55555555) == bx::uint32_part1by1(UINT16_MAX) );
+ CHECK(UINT32_C(0x09249249) == bx::uint32_part1by2(0x3ff) );
+}