18 lines
514 B
Java
18 lines
514 B
Java
package org.nfunk.jep.function;
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import java.util.Stack;
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import org.nfunk.jep.ParseException;
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public class Not extends PostfixMathCommand {
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public void run(Stack paramStack) throws ParseException {
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checkStack(paramStack);
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Number number = (Number)paramStack.pop();
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if (number instanceof Number) {
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boolean bool = (((Number)number).doubleValue() == 0.0D) ? true : false;
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paramStack.push(new Double(bool));
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} else {
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throw new ParseException("Invalid parameter type");
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}
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}
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}
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