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Codes / Error Code 016

Error Code 016

Overview

This error occurs when the compiler detects code that cannot be executed under any circumstances. Unreachable code often indicates logical errors, redundant code, or mistakes in control flow.

Details

  • Common Causes:

    • Code placed after a return, break, continue, or throw statement.
    • Infinite loops that prevent subsequent code from executing.
    • Conditional branches that always evaluate to the same outcome.

  • Example:

void main() {
    return;
    writeln("This will never be executed."); // Error: unreachable code
}
  • Solution:
    • Remove or refactor unreachable code to clean up the logic: 
      void main() {
    writeln("Executed code."); // Valid
}
    • Check control flow for redundant branches or unnecessary statements: 
      void example(int x) {
    if (x > 0) {
        return;
    }
    writeln("Negative or zero."); // Ensure this is reachable
}