In circom
there is an operation that can be used while developing circuits to help the programmer to debug (note that there are no input/output operations on the standard input/output channels).
To this end, the operation log
has as parameter a non-conditional expression, (that is, not including the ?
operator). The execution of this instruction prints the result of the evaluation of the expression in the standard error stream. As examples consider:
log(135);log(c.b);log(x==y);