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126 lines
2.7 KiB
Plaintext
126 lines
2.7 KiB
Plaintext
[[Property:title|eif_*_function]]
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[[Property:weight|15]]
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[[Property:uuid|643603a5-de12-1ffc-2da3-92c8475078e8]]
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==Overview==
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This page documents all CECIL functions of the form eif_*_function where "*" is a supported type such as "integer", "bit", "character", "real", etc.
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==Synopsis==
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<code lang="text">
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#include "eif_cecil.h"
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EIF_REFERENCE_FUNCTION eif_reference_function (char * name, int * tid);
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EIF_INTEGER_FUNCTION eif_integer_function (char * name, int * tid);
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EIF_CHARACTER_FUNCTION eif_character_function (char * name, int * tid);
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EIF_REAL_FUNCTION eif_real_function (char * name, int * tid);
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EIF_DOUBLE_FUNCTION eif_double_function (char * name, int * tid);
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EIF_BOOLEAN_FUNCTION eif_boolean_function (char * name, int * tid);
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EIF_POINTER_FUNCTION eif_pointer_function (char * name, int * tid);
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EIF_BIT_FUNCTION eif_bit_function (char * name, int * tid);
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</code>
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==Description==
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These functions return the address of the Eiffel function of name <code lang="text">name</code> from the class, which type identifier is <code lang="text">tid</code>.
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{| border="1"
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! Use this function !! For an Eiffel function returning
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|-
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| eif_reference_function
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| Eiffel reference
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|-
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| eif_integer_function
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| Eiffel integer
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|-
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| eif_character_function
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| Eiffel character
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|-
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| eif_real_function
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| Eiffel real
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|-
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| eif_double_function
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| Eiffel double
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|-
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| eif_boolean_function
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| Eiffel boolean
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|-
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| eif_pointer_function
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| Eiffel pointer
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|-
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| eif_bit_function
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| Eiffel bit
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|}
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If the visible exception is enabled, it raises an visible exception upon failure.
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==Return value==
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Successful: The address of the function.
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Failing: NULL (function does not exist or is not visible).
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==Notes==
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The Eiffel function cannot be a C external. In this case, you must directly call the C routine.
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The return value is an address: to use it as a routine, you must call it with arguments or at least with ().
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No argument type checking is done. You may cast the address of an Eiffel routine, obtained with these functions, when calling it with real arguments.
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If the function returns an Eiffel reference, you must protect it with [[eif_protect]].
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==Conformance==
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ISE Eiffel 4.4 and later.
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==Compatibility==
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Compatibility with deprecated functions is shown in this table.
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{| border="1"
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! Function name !! Equivalent deprecated function name
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|-
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| eif_reference_function
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| eif_fn_ref
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|-
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| eif_integer_function
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| eif_fn_int
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|-
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| eif_real_function
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| eif_fn_float
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| eif_double_function
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| eif_fn_double
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|-
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| eif_character_function
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| eif_fn_char
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|-
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| eif_bit_function
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| eif_fn_bit
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|-
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| eif_boolean_function
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| eif_fn_bool
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|-
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| eif_pointer_function
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| eif_fn_pointer
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|}
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{{SeeAlso| <br/>
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[[eif_type_id]]<br/>
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[[eif_protect]]<br/>
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[[eif_procedure]] }}
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