Comparing blank varchar variable with int variable

Question

In my code I need to compare 2 variables. One variable is of int data type & another is of varchar2 data type.

In order to compare I am using the below code:

intVariable == atoi(varcharVariable.arr)

The issue is that when the corresponding varchar variable is blank then atoi returns 0 which conflicts with my business logic.

Solution: to alter the condition as below:

intVariable == atoi(varcharVariable.arr) && strlen(varcharVariable.arr) != 0

Please advise if there is any better/alternate way. Thanks in advance.

Best way:

intVariable == atoi(varcharVariable.arr) && varcharVariable.arr[0] != 0x00

Answer 1

Best Way:

intVariable == atoi(varcharVariable.arr) && varcharVariable.arr[0] != 0x00