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made everything more robust, so that if something does break (exception) it reverts back to how it used to calculate

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Zanz2 2018-07-04 14:45:57 +02:00
parent 6b0d0eeaca
commit 08d72fc7d8
1 changed files with 30 additions and 50 deletions
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80
vendor/assets/javascripts/ruleJS.js vendored
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@ -1036,43 +1036,44 @@ let ruleJS = (function (root) {
switch (type) {
case '+':
//(sci-2587) MODIFICATION TO AVOID JAVASCRIPT IEEE MANTISSA&EXPONENT FLOATS INNACURACY
var number1_big = new Big(number1);
var result_big = number1_big.plus(number2)
result = parseFloat(result_big)
try{
var number1_big = new Big(number1);
var result_big = number1_big.plus(number2)
result = parseFloat(result_big)
} catch(e) {
result = number1 + number2
}
//MODIFICATION END
//ORIGINAL: result = number1 + number2;
console.log("plus")
console.log("new: "+result)
console.log("old: "+(number1 + number2))
break;
case '-':
//(sci-2587) MODIFICATION TO AVOID JAVASCRIPT IEEE MANTISSA&EXPONENT FLOATS INNACURACY
var number1_big = new Big(number1);
var result_big = number1_big.minus(number2)
result = parseFloat(result_big)
try{
var number1_big = new Big(number1);
var result_big = number1_big.minus(number2)
result = parseFloat(result_big)
} catch(e) {
result = number1 - number2
}
//MODIFICATION END
//ORIGINAL: result = number1 - number2;
console.log("minus")
console.log("new: "+result)
console.log("old: "+(number1 - number2))
break;
case '/':
//(sci-2587) MODIFICATION TO AVOID JAVASCRIPT IEEE MANTISSA&EXPONENT FLOATS INNACURACY
var number1_big = new Big(number1);
var result_big = number1_big.div(number2)
result = parseFloat(result_big)
try{
var number1_big = new Big(number1);
var result_big = number1_big.div(number2)
result = parseFloat(result_big)
} catch(e){
result = number1 / number2
}
//MODIFICATION END
//ORIGINAL: result = number1 / number2;
console.log("div")
console.log("new: "+result)
console.log("old: "+(number1 / number2))
if (result == Infinity) {
throw Error('DIV_ZERO');
} else if (isNaN(result)) {
@ -1082,45 +1083,24 @@ let ruleJS = (function (root) {
case '*':
//(sci-2587) MODIFICATION TO AVOID JAVASCRIPT IEEE MANTISSA&EXPONENT FLOATS INNACURACY
var number1_big = new Big(number1);
var result_big = number1_big.times(number2)
result = parseFloat(result_big)
try{
var number1_big = new Big(number1);
var result_big = number1_big.times(number2)
result = parseFloat(result_big)
} catch(e) {
result = number1 * number2
}
//MODIFICATION END
//ORIGINAL: result = number1 * number2;
console.log("mult")
console.log("new: "+result)
console.log("old: "+(number1 * number2))
break;
case '^':
//(sci-2587) MODIFICATION TO AVOID JAVASCRIPT IEEE MANTISSA&EXPONENT FLOATS INNACURACY
var number1_big = new Big(number1);
var result_big = number1_big.pow(number2)
result = parseFloat(result_big)
//MODIFICATION END
result = Math.pow(number1, number2);
//ORIGINAL: result = Math.pow(number1, number2);
var old_res = Math.pow(number1, number2)
console.log("----------------problem------------")
console.log("--power")
console.log("new: "+result)
console.log("old: "+old_res)
break;
case 'e':
//(sci-2587) MODIFICATION TO AVOID JAVASCRIPT IEEE MANTISSA&EXPONENT FLOATS INNACURACY
result = number1 * Math.pow(10, number2);
var number1_big = new Big(number1);
var second_part = new Big(10).pow(number2);
var result_big = number1_big.times(ParseFloat(second_part))
result = parseFloat(result_big)
//MODIFICATION END
//ORIGINAL: result = number1 * Math.pow(10, number2);
var old_res = number1 * Math.pow(10, number2)
console.log("----------------problem------------")
console.log("--e")
console.log("new: "+result)
console.log("old: "+old_res)
break;
}