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Switch Case Statement in C

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Basic Structure: Switch case tests expression against constant integer values
Uses switch and case keywords
Default statement executes if no matches found
Break statement required but optional
Key Rules: Expression must evaluate to character or integer
Case constants must be integer or character types
Case constants can be in any order
Default statement can be placed anywhere
Break statement stops switch case execution
Limitations: Floating-point numbers not allowed
Case ranges must be valid integer expressions
Case labels can't exist independently
C89 allows 257 cases, C99 requires 1023
Advantages: Faster than nested if-else statements
Cleaner and easier to understand syntax
Can handle multiple selection types
Easier to add new cases