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Co-authored-by: Rachel <rachel@lhea.me>
36 lines
887 B
C
36 lines
887 B
C
// SPDX-License-Identifier: MIT
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/*
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* vector - An implementation of a generic dynamic array.
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* Copyright (C) 2025 <lhearachel@proton.me>
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*/
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#ifndef VECTOR_H
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#define VECTOR_H
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typedef struct vector {
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void *data;
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int cap;
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int len;
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} vector;
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// clang-format off
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#define newvec(__T, __cap) (vector){ .data = calloc(__cap, sizeof(__T)), .cap = (__cap), .len = 0 }
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#define grow(__v, __T) ( \
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(__v)->cap *= 2, \
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realloc((__v)->data, sizeof(__T) * (__v)->cap) \
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)
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#define push(__v, __T) ( \
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(__v)->len >= (__v)->cap \
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? (__v)->data = grow(__v, __T), \
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((__T *)(__v)->data) + (__v)->len++ \
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: ((__T *)(__v)->data) + (__v)->len++ \
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)
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#define get(__v, __T, __i) (&((__T *)(__v)->data)[__i])
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// clang-format on
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#endif // VECTOR_H
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