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Fix converting JS floating-point numbers to long (fix #228).

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This commit is contained in:
Alexey Andreev 2016-11-04 14:12:51 +03:00
parent 6f5c6cd66e
commit daf5ada5c6
2 changed files with 8 additions and 1 deletions
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2
core/src/main/resources/org/teavm/backend/javascript/runtime.js
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@ -621,7 +621,7 @@ function Long_fromNumber(val) {
if (val >= 0) { if (val >= 0) {
return new Long(val | 0, (val / 0x100000000) | 0); return new Long(val | 0, (val / 0x100000000) | 0);
} else { } else {
return new Long(val | 0, (-(Math.abs(val) / 0x100000000) - 1) | 0); return Long_neg(new Long(-val | 0, (-val / 0x100000000) | 0));
} }
} }
function Long_toNumber(val) { function Long_toNumber(val) {

7
tests/src/test/java/org/teavm/vm/LongTest.java
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@ -49,6 +49,13 @@ public class LongTest {
assertEquals(2971215073L, a + b); assertEquals(2971215073L, a + b);
} }
@Test
public void smallLongDivision() {
long a = id(-1);
long b = 3;
assertEquals(0, a / b);
}
private static long id(long value) { private static long id(long value) {
return value; return value;
} }