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30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
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// Copyright 2022 Dietrich Epp.
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// This file is part of SyncFiles. SyncFiles is licensed under the terms of the
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// Mozilla Public License, version 2.0. See LICENSE.txt for details.
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#ifndef LIB_STRBUF_H
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#define LIB_STRBUF_H
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#include <stddef.h>
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#include "lib/defs.h"
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// A strbuf is a buffer for building a string. The structure can be
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// zero-initialized.
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struct Strbuf {
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char *buf; // String data. May be NULL if strbuf is empty.
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size_t len; // String length, not including nul terminator.
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size_t alloc; // Data reserved for string, not including terminator.
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};
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// Reserve enough space in the strbuf to store a string which is n bytes long.
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// Also reserve enough space for the nul byte after. Return true on success.
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bool StrbufAlloc(struct Strbuf *restrict b, size_t n);
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// Reserve enough space in the strbuf to append n bytes to the buffer. Also
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// reserve enough space for the nul byte after. Return true on success.
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bool StrbufReserve(struct Strbuf *restrict b, size_t n);
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// Append the given data to the buffer. Return true on success.
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bool StrbufAppendMem(struct Strbuf *restrict b, const char *s, size_t n);
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#endif
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