Detailed Description

Provides commonly-used comparison and value clamping macros for constraining values to specific ranges or selecting minimum/maximum values.

Available macros:

• clamplow(val, low) - Clamps value to minimum bound
• clamphigh(val, high) - Clamps value to maximum bound
  
• clamp(val, low, high) - Clamps value to range [low, high]
• min(a, b) - Returns minimum of two values
• max(a, b) - Returns maximum of two values

Warning: These are macros that evaluate arguments multiple times. Avoid using expressions with side effects (e.g., clamp(x++, 0, 10)).