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Make modulo arithmetic conform to lua rules for negative values.

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This commit is contained in:
James Roseborough
2007-08-01 04:57:12 +00:00
parent 737c5e2855
commit 32dcbaca3a
2 changed files with 3 additions and 2 deletions
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3
src/main/java/lua/value/LDouble.java
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@@ -39,7 +39,8 @@ public class LDouble extends LNumber {
case Lua.OP_SUB: return new LDouble( lhs - rhs ); case Lua.OP_SUB: return new LDouble( lhs - rhs );
case Lua.OP_MUL: return new LDouble( lhs * rhs ); case Lua.OP_MUL: return new LDouble( lhs * rhs );
case Lua.OP_DIV: return new LDouble( lhs / rhs ); case Lua.OP_DIV: return new LDouble( lhs / rhs );
case Lua.OP_MOD: return new LDouble( lhs % rhs ); case Lua.OP_MOD: return new LDouble( lhs - Math.floor(lhs/rhs) * rhs );
// case Lua.OP_POW: return new LDouble( Math.pow(lhs, rhs) ); // case Lua.OP_POW: return new LDouble( Math.pow(lhs, rhs) );
} }
return luaUnsupportedOperation(); return luaUnsupportedOperation();

2
src/main/java/lua/value/LInteger.java
View File

@@ -34,7 +34,7 @@ public class LInteger extends LNumber {
case Lua.OP_SUB: return new LInteger( m_value - rhs ); case Lua.OP_SUB: return new LInteger( m_value - rhs );
case Lua.OP_MUL: return new LInteger( m_value * rhs ); case Lua.OP_MUL: return new LInteger( m_value * rhs );
case Lua.OP_DIV: return new LInteger( m_value / rhs ); case Lua.OP_DIV: return new LInteger( m_value / rhs );
case Lua.OP_MOD: return new LInteger( m_value % rhs ); case Lua.OP_MOD: return new LInteger( m_value - ((int) Math.floor(m_value/(double)rhs)) * rhs );
// case Lua.OP_POW: return new LInteger( (int) Math.pow(m_value, rhs) ); // case Lua.OP_POW: return new LInteger( (int) Math.pow(m_value, rhs) );
} }
return luaUnsupportedOperation(); return luaUnsupportedOperation();