BigIntegers are limited in the AVM ABI at:
https://github.com/aionnetwork/AVM/blob/master/org.aion.avm.userlib/src/org/aion/avm/userlib/abi/ABIStreamingEncoder.java#L480
a) This limitation is not specified in documentation. aionnetwork/aion-docs#64
b) The actual limits of the BigIntegers should be mentioned in code for clarity. I think it will be [-2^255, 2^255 - 1]. But the exact number is useful to document.
BigIntegers are limited in the AVM ABI at:
https://github.com/aionnetwork/AVM/blob/master/org.aion.avm.userlib/src/org/aion/avm/userlib/abi/ABIStreamingEncoder.java#L480
a) This limitation is not specified in documentation. aionnetwork/aion-docs#64
b) The actual limits of the BigIntegers should be mentioned in code for clarity. I think it will be [-2^255, 2^255 - 1]. But the exact number is useful to document.