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38 lines
798 B
C
38 lines
798 B
C
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// Copyright (c) Facebook, Inc. and its affiliates.
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// SPDX-License-Identifier: GPL-3.0-or-later
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/**
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* @file
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*
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* String with length.
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*/
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#ifndef DRGN_NSTRING_H
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#define DRGN_NSTRING_H
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#include <string.h>
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/** A string with a stored length. */
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struct nstring {
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/**
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* The string, which is not necessarily null-terminated and may have
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* embedded null bytes.
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*/
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const char *str;
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/** The length in bytes of the string. */
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size_t len;
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};
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/** Compare two @ref nstring keys for equality. */
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static inline bool nstring_eq(const struct nstring *a, const struct nstring *b)
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{
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/*
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* len == 0 is a special case because memcmp(NULL, NULL, 0) is
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* technically undefined.
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*/
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return (a->len == b->len &&
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(a->len == 0 || memcmp(a->str, b->str, a->len) == 0));
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}
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#endif /* DRGN_NSTRING_H */
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