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I am trying to understand the arguments of the built-in Solidity's (or EVM's: I am not sure) call function. I know it has 4 arguments. I am trying to understand the call function at: Syntax Error in Program

The implicit call method in the above link is:

 a.blah.value(ValueToSend)(2, 3);

I am telling the 4 argumens, kindly let me correct if I am wrong:

  1. Amount of gas: calculated by the EVM system using some formula?
  2. Destination address: a.blah
  3. Ether= Value to send
  4. input/output: input = 2 & 3: output=?

Is the following the explicit version of above call but it would invoke the fallback function instead of blah(...), is this correct?:

a.call.value(ValueToSend)(2,3)?

Some body please guide me.

Zulfi

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  • 3
    Possible duplicate of What does Solidity's "call" function mean? Jun 21, 2019 at 8:05
  • 1
    The sentence a.blah.value(ValueToSend)(2, 3) is interpreted as call function blah from contract a with parameters 2, 3 and send ValueToSend wei. On the other hand a.call.value(ValueToSend)(2,3) is a syntax error on solidity 0.5 because it only accepts bytes as parameter to call.
    – Ismael
    Jun 21, 2019 at 16:21
  • And the output of call would be true/false along with some argument?
    – zak100
    Jun 22, 2019 at 1:30

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