inline specifier
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[editar] Sintaxis
| inline function_declaration | |||||||||
[editar] Descripción
La palabra clave en línea es una pista dada al compilador para realizar una optimización. El compilador tiene la libertad de hacer caso omiso de esta petición .
Original:
The inline keyword is a hint given to the compiler to perform an optimization. The compiler has the freedom to ignore this request.
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Si el compilador Inlines la función, que sustituye cada llamada de la función con el cuerpo real (sin generar una llamada) .
Original:
If the compiler inlines the function, it replaces every call of that function with the actual body (without generating a call).
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Esto evita la sobrecarga adicional creado por la llamada de función (la colocación de datos en la pila y la recuperación del resultado), pero puede resultar en un ejecutable más grande como el código de la función tiene que ser repetido varias veces .
Original:
This avoids extra overhead created by the function call (placing data on stack and retrieving the result) but it may result in a larger executable as the code for the function has to be repeated multiple times.
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El resultado es similar a como la función de macros
Original:
The result is similar to como la función de macros
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El cuerpo de la función debe ser visible en la unidad de traducción actual .
Original:
The function body must be visible in the current translation unit.
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Los métodos de clase definidas dentro del cuerpo de la clase se declara implícitamente en línea .
Original:
Class methods defined inside the class body are implicitly declared inline.
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[editar] Ejemplo
inline int sum(int a, int b) { return (a + b); } int c = sum(1, 4); // if the compiler inlines the function the compiled code will be the same as writing int c = 1 + 4;
