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Diffstat (limited to 'cras/src/common/array.h')
| -rw-r--r-- | cras/src/common/array.h | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/cras/src/common/array.h b/cras/src/common/array.h deleted file mode 100644 index b21987e9..00000000 --- a/cras/src/common/array.h +++ /dev/null @@ -1,117 +0,0 @@ -/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#ifndef CRAS_ARRAY_H_ -#define CRAS_ARRAY_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -#include <string.h> - -/* - -Sample usage: - -DECLARE_ARRAY_TYPE(double, double_array); - -void f() -{ - int i; - double *p; - double_array a = ARRAY_INIT; - - ARRAY_APPEND(&a, 1.0); - *ARRAY_APPEND_ZERO(&a) = 2.0; - - ARRAY_ELEMENT_FOREACH(&a, i, p) { - printf("%f\n", *p); // prints 1.0 2.0 - } - - ARRAY_FREE(&a); -} - -*/ - -/* Define a type for the array given the element type */ -#define DECLARE_ARRAY_TYPE(element_type, array_type) \ - typedef struct { \ - int count; \ - int size; \ - element_type *element; \ - } array_type; - -/* The initializer for an empty array is the zero value. */ -#define ARRAY_INIT \ - { \ - } - -#define _ARRAY_EXTEND(a) \ - ({ \ - if ((a)->count >= (a)->size) { \ - if ((a)->size == 0) \ - (a)->size = 4; \ - else \ - (a)->size *= 2; \ - (a)->element = (__typeof((a)->element))realloc( \ - (a)->element, \ - (a)->size * sizeof((a)->element[0])); \ - } \ - &(a)->element[((a)->count)++]; \ - }) - -/* Append an element with the given value to the array a */ -#define ARRAY_APPEND(a, value) \ - do { \ - *_ARRAY_EXTEND(a) = (value); \ - } while (0) - -/* Append a zero element to the array a and return the pointer to the element */ -#define ARRAY_APPEND_ZERO(a) \ - ({ \ - typeof((a)->element) _tmp_ptr = _ARRAY_EXTEND(a); \ - memset(_tmp_ptr, 0, sizeof(*_tmp_ptr)); \ - _tmp_ptr; \ - }) - -/* Return the number of elements in the array a */ -#define ARRAY_COUNT(a) ((a)->count) - -/* Return a pointer to the i-th element in the array a */ -#define ARRAY_ELEMENT(a, i) ((a)->element + (i)) - -/* Return the index of the element pointed by p in the array a */ -#define ARRAY_INDEX(a, p) ((p) - (a)->element) - -/* Go through each element in the array a and assign index and pointer - to the element to the variable i and ptr */ -#define ARRAY_ELEMENT_FOREACH(a, i, ptr) \ - for ((i) = 0, (ptr) = (a)->element; (i) < (a)->count; (i)++, (ptr)++) - -/* Free the memory used by the array a. The array becomes an empty array. */ -#define ARRAY_FREE(a) \ - do { \ - free((a)->element); \ - (a)->element = NULL; \ - (a)->size = 0; \ - (a)->count = 0; \ - } while (0) - -/* Return the index of the element with the value x. -1 if not found */ -#define ARRAY_FIND(a, x) \ - ({ \ - typeof((a)->element) _bptr = (a)->element; \ - typeof((a)->element) _eptr = (a)->element + (a)->count; \ - for (; _bptr != _eptr && *_bptr != x; _bptr++) \ - ; \ - (_bptr == _eptr) ? -1 : (_bptr - (a)->element); \ - }) - -#ifdef __cplusplus -} /* extern "C" */ -#endif - -#endif /* CRAS_ARRAY_H_ */ |