_Eina_Value_Struct_Desc Struct Reference

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_Eina_Value_Struct_Desc Struct Reference
Eina » Data Types » Containers » Generic Value Storage » Generic Value Struct management

Describes the struct by listing its size, members and operations. More...

`#include <eina_value.h>`

## Data Fields
unsigned int | version
| must be EINA_VALUE_STRUCT_DESC_VERSION
const Eina_Value_Struct_Operations * | ops
| operations, if `NULL` defaults will be used.
const Eina_Value_Struct_Member * | members
| array of member descriptions, if `member_count` is zero, then it must be `NULL` terminated.
unsigned int | member_count
| if > 0, specifies number of members.
unsigned int | size
| byte size to allocate, may be bigger than sum of members

## Detailed Description

Describes the struct by listing its size, members and operations.

This is the root of Eina_Value knowledge about the memory it's handling as a structure. It adds introspection, saying the byte size of the structure, its members and how to manage such members.

Since
  1.2

Examples
  complex-types-client-eina-value.c, and eina_value_02.c.

## Field Documentation

## ◆ ops

const Eina_Value_Struct_Operations* _Eina_Value_Struct_Desc::ops

operations, if `NULL` defaults will be used.

You may use operations to optimize member lookup using binary search or gperf hash.

## ◆ member_count

unsigned int _Eina_Value_Struct_Desc::member_count

if > 0, specifies number of members.

If zero then `members` must be NULL terminated.