Should You Use Exception Specifiers in C ?

The Usage of Exception Specifiers in C

Question:

Should exception specifiers be employed in C programming?

Answer:

No.

Reasons:

• Lack of Enforcement: Compilers do not strictly enforce exception specifiers, making their benefits questionable.
• Termination on Violation: Non-compliance with specifiers typically leads to program termination, which is not always desirable.
• Inconsistency in Visual Studio: Visual Studio treats throw(X) as throw(...), compromising adherence to the standard.
• Template Restrictions: Exception specifications hinder the creation of template code as they cannot accommodate exceptions that may occur during execution.
• Prohibition of Extensibility: Exception specifications limit code extensibility by requiring explicit specification of potential exceptions, which may not be known or foreseeable.
• Issues with Legacy Code: Libraries may throw unknown exceptions, rendering exception specifiers unreliable in such scenarios.
• Recommended Approach: Returning common errors as values while reserving exceptions for exceptional circumstances is a more practical approach.

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