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not sure if this is possible, but I was wondering if one function can calculate the gas cost of another function?

Also can a function run a series of computations to match the gas cost of the function?

function checkGasCostToRunFunctionX() public view returns(uint) {
  return uint(gasCostOfRunningFunctionX())
}

function functionX() public {
 10000000000000000000000 + 10000000000000000000000;
}

function cloneFunctionXGasCost() public {
// small computation
1 + 1;
someKindOfPaddingComputationToMakeThisFunctionCostTheSameAsFunctionX;
}

function checkCloneFunctionCostsSameAsFunctionX() public view returns(uint) {
 if (gasCostOfFunctionX == gasCostOfCloneFunction) {
    return = true;
}

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