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Change mju_round to use standard round() function.

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PiperOrigin-RevId: 942873144
Change-Id: I3fd0d630643c104ff464d619387ff36582c2a5d8
This commit is contained in:
Yuval Tassa
2026-07-05 10:47:30 -07:00
committed by Copybara-Service
parent 4cb14bef47
commit 1ea2d884d2
3 changed files with 31 additions and 9 deletions
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test/engine/engine_util_misc_test.cc
+24
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@@ -17,6 +17,7 @@
#include "src/engine/engine_util_misc.h"
#include <array>
#include <climits>
#include <cmath>
#include <cstddef>
#include <cstdint>
@@ -1720,5 +1721,28 @@ TEST_F(ShellTFITest, NoInteriorSmallGrid) {
}
}
TEST_F(UtilMiscTest, Round) {
// basic rounding
EXPECT_EQ(mju_round(2.3), 2);
EXPECT_EQ(mju_round(2.7), 3);
EXPECT_EQ(mju_round(-2.3), -2);
EXPECT_EQ(mju_round(-2.7), -3);
// exact integers
EXPECT_EQ(mju_round(0.0), 0);
EXPECT_EQ(mju_round(3.0), 3);
EXPECT_EQ(mju_round(-3.0), -3);
// ties: round() rounds away from zero
EXPECT_EQ(mju_round(0.5), 1);
EXPECT_EQ(mju_round(1.5), 2);
EXPECT_EQ(mju_round(-0.5), -1);
EXPECT_EQ(mju_round(-1.5), -2);
// overflow clamps to INT_MAX/INT_MIN
EXPECT_EQ(mju_round(1e18), INT_MAX);
EXPECT_EQ(mju_round(-1e18), INT_MIN);
}
} // namespace
} // namespace mujoco