mirror of https://github.com/python/cpython
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
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/* Interface to map C struct members to Python object attributes */
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/* The offsetof() macro calculates the offset of a structure member
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in its structure. Unfortunately this cannot be written down
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portably, hence it is provided by a Standard C header file.
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For pre-Standard C compilers, here is a version that usually works
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(but watch out!): */
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#ifndef offsetof
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#define offsetof(type, member) ( (int) & ((type*)0) -> member )
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#endif
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/* An array of memberlist structures defines the name, type and offset
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of selected members of a C structure. These can be read by
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getmember() and set by setmember() (except if their READONLY flag
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is set). The array must be terminated with an entry whose name
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pointer is NULL. */
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struct memberlist {
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char *name;
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int type;
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int offset;
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int readonly;
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};
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/* Types */
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#define T_SHORT 0
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#define T_INT 1
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#define T_LONG 2
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#define T_FLOAT 3
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#define T_DOUBLE 4
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#define T_STRING 5
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#define T_OBJECT 6
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/* Readonly flag */
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#define READONLY 1
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#define RO READONLY /* Shorthand */
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object *getmember PROTO((char *, struct memberlist *, char *));
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int setmember PROTO((char *, struct memberlist *, char *, object *));
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