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Codes / Error Code 004

Error Code 004

Overview

This error occurs when a function with a non-void return type does not return a value in all code paths.

Details

  • Common Causes:

    • Forgetting to add a return statement in a function with a non-void return type.
    • Conditional branches that do not return a value in all cases.

  • Example:

int add(int a, int b) {
    if (a > 0) {
        return a + b;
    }
    // Error: missing return statement
}
  • Solution: Ensure all code paths in the function return a value:
int add(int a, int b) {
    if (a > 0) {
        return a + b;
    }
    return 0; // Default return value
}