cpython/Include/internal/pycore_c_array.h at main · python/cpython · GitHub

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#ifndef Py_INTERNAL_C_ARRAY_H

#define Py_INTERNAL_C_ARRAY_H

#ifdef __cplusplus

extern "C" {

#endif

#ifndef Py_BUILD_CORE

# error "this header requires Py_BUILD_CORE define"

#endif

/* Utility for a number of growing arrays */

typedef struct {

void *array; /* pointer to the array */

int allocated_entries; /* pointer to the capacity of the array */

size_t item_size; /* size of each element */

int initial_num_entries; /* initial allocation size */

} _Py_c_array_t;

int _Py_CArray_Init(_Py_c_array_t* array, int item_size, int initial_num_entries);

void _Py_CArray_Fini(_Py_c_array_t* array);

/* If idx is out of bounds:

* If arr->array is NULL, allocate arr->initial_num_entries slots.

* Otherwise, double its size.

* Return 0 if successful and -1 (with exception set) otherwise.

int _Py_CArray_EnsureCapacity(_Py_c_array_t *c_array, int idx);

#ifdef __cplusplus

}

#endif

#endif /* !Py_INTERNAL_C_ARRAY_H */

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