What is constant folding and how does it work?
Constant folding is an optimization technique where constant expressions are evaluated at compile time rather than runtime.
Can you give me examples of how it's implemented in languages like Python and Java?
In Python, the interpreter optimizes constant expressions during bytecode compilation. In Java, the compiler performs constant folding during the bytecode generation phase.
Are there any languages that don't support constant folding?
Most modern programming languages support some form of constant folding, but older or more niche languages may not.
How does constant folding affect performance?
Constant folding can significantly improve performance by reducing the number of calculations needed at runtime, leading to faster execution.
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