62 lines
4.0 KiB
C
62 lines
4.0 KiB
C
#ifndef UTILS_GENERIC_ARRAY_H
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#define UTILS_GENERIC_ARRAY_H
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#include <stddef.h>
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#include <stdlib.h>
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#define GENERIC_ARRAY(Type, struct_name, function_prefix) \
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struct struct_name { \
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Type* data; \
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size_t length, capacity; \
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}; \
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\
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static inline void function_prefix##_construct(struct struct_name* array) \
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{ \
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*array = (struct struct_name) { \
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.data = NULL, \
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.length = 0, \
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.capacity = 0, \
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}; \
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} \
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\
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static inline void function_prefix##_destroy(struct struct_name* array) \
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{ \
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if (array->data) \
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free(array->data); \
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} \
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\
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static inline size_t function_prefix##_length( \
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const struct struct_name* array \
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) \
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{ \
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return array->length; \
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} \
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\
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static inline Type* function_prefix##_get( \
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const struct struct_name* array, size_t index \
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) \
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{ \
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if (index >= array->length) \
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return NULL; \
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else \
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return &array->data[index]; \
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} \
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\
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static inline void function_prefix##_append( \
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struct struct_name* array, Type value \
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) \
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{ \
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if (array->data == NULL) { \
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array->capacity = 8; \
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array->data = malloc(sizeof(Type) * array->capacity); \
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} else if (array->length == array->capacity) { \
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array->capacity *= 2; \
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array->data \
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= realloc(array->data, sizeof(Type) * array->capacity); \
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} \
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array->data[array->length] = value; \
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array->length++; \
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}
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#endif
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