104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/* The MIT License
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Copyright (c) 2008, by Attractive Chaos <attractor@live.co.uk>
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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/*
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An example:
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#include "kvec.h"
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int main() {
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kvec_t(int) array;
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kv_init(array);
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kv_push(int, array, 10); // append
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kv_a(int, array, 20) = 5; // dynamic
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kv_A(array, 20) = 4; // static
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kv_destroy(array);
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return 0;
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}
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*/
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/*
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2008-09-22 (0.1.0):
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* The initial version.
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*/
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#ifndef AC_KVEC_H
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#define AC_KVEC_H
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#include <stdlib.h>
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#define kv_roundup32(x) (--(x), (x)|=(x)>>1, (x)|=(x)>>2, (x)|=(x)>>4, (x)|=(x)>>8, (x)|=(x)>>16, ++(x))
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#define kvec_t(type) struct { size_t n, m; type *a; }
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#define kv_init(v) ((v).n = (v).m = 0, (v).a = 0)
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#define kv_destroy(v) free((v).a)
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#define kv_A(v, i) ((v).a[(i)])
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#define kv_pop(v) ((v).a[--(v).n])
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#define kv_size(v) ((v).n)
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#define kv_max(v) ((v).m)
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#define kv_resize(type, v, s) ((v).m = (s), (v).a = (type*)realloc((v).a, sizeof(type) * (v).m))
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#define kv_grow_factor 1.5
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#define kv_grow(type, v) ((v).m = ((v).m > 1 ? (v).m * kv_grow_factor : 2), \
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(v).a = (type*)realloc((v).a, sizeof(type) * (v).m))
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#define kv_copy(type, v1, v0) do { \
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if ((v1).m < (v0).n) kv_resize(type, v1, (v0).n); \
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(v1).n = (v0).n; \
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memcpy((v1).a, (v0).a, sizeof(type) * (v0).n); \
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} while (0) \
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#define kv_push(type, v, x) do { \
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if ((v).n == (v).m) { \
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kv_grow(type, v); \
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} \
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(v).a[(v).n++] = (x); \
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} while (0)
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#define kv_prepend(type, v, x) do { \
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if ((v).n == (v).m) { \
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kv_grow(type, v); \
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} \
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memmove((v).a + 1, (v).a, sizeof(type) * (v).n); \
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(v).a[0] = (x); \
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(v).n ++; \
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} while (0)
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#define kv_concat(type, v1, v0) do { \
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if ((v1).m < (v0).n + (v1).n) kv_resize(type, v1, (v0).n + (v1).n); \
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memcpy((v1).a + (v1).n, (v0).a, sizeof(type) * (v0).n); \
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(v1).n = (v0).n + (v1).n; \
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} while (0)
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#define kv_del(type, v, i) do { \
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if ((i) < (v).n) { \
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memmove((v).a + (i), (v).a + ((i) + 1), sizeof(type) * ((v).n - (i) - 1)); \
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(v).n --; \
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} \
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} while (0)
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#endif
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