ell_assert.hpp File Reference

Branch prediction macros for performance optimization. More...

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Macros
#define	ELL_LIKELY(x)   (!!(x))
	Hint that the expression is likely to be true.
#define	ELL_UNLIKELY(x)   (!!(x))
	Hint that the expression is unlikely to be true.

Detailed Description

Branch prediction macros for performance optimization.

This header provides macros for giving hints to the compiler about the likelihood of certain conditions being true or false. This can help the CPU generate more efficient code by optimizing branch prediction.

Macro Definition Documentation

ELL_LIKELY

#define ELL_LIKELY

(

x

)

(!!(x))

Hint that the expression is likely to be true.

This macro tells the compiler that the expression is likely to evaluate to true, allowing it to optimize the generated code for the common case.

Parameters

x	The expression to evaluate

Returns

The same expression value

ELL_UNLIKELY

#define ELL_UNLIKELY

(

x

)

(!!(x))

Hint that the expression is unlikely to be true.

This macro tells the compiler that the expression is unlikely to evaluate to true, allowing it to optimize the generated code for the uncommon case. This is typically used for error conditions or exceptional paths.

Parameters

x	The expression to evaluate

Returns

The same expression value