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38 lines
965 B
C
38 lines
965 B
C
/* vector.h - A simple vector implementation in c
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*/
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#ifndef _VECTOR_H_
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#define _VECTOR_H_
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#include <sys/types.h>
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struct vector {
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unsigned size;
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unsigned cap;
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void **data;
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};
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void vec_init(struct vector *v);
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void vec_push_back(struct vector *v, void *p);
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void *vec_pop_back(struct vector *v);
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void vec_sort(struct vector *v, int (*compar)(const void *, const void *));
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void vec_destroy(struct vector *v);
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void vec_deep_destroy(struct vector *v);
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struct vector *vec_dup(struct vector *v);
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#define vec_size(v) (v)->size
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#define vec_cap(v) (v)->cap
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#define vec_entry(v) (v)->data
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/* Usage: vec_for_each(vector *v, void *e) */
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#define vec_for_each(v, e) \
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e = v ? (v)->data[0] : NULL; \
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for (int _ = 0; v && _ < (v)->size; ++_, e = (v)->data[_])
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#define vec_for_each_r(v, e) \
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e = (v && (v)->size > 0) ? (v)->data[(v)->size - 1] : NULL; \
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for (int _ = ((int) (v)->size) - 1; v && _ >= 0; --_, e = (v)->data[_])
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#define vec_cur(v) vec_entry(v)[_]
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#endif
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