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// Copyright (c) Meta Platforms, Inc. and affiliates.
// SPDX-License-Identifier: LGPL-2.1-or-later
/**
* @file
*
* String with length.
*/
#ifndef DRGN_NSTRING_H
#define DRGN_NSTRING_H
#include <string.h>
/** A string with a stored length. */
struct nstring {
/**
* The string, which is not necessarily null-terminated and may have
* embedded null bytes.
*/
const char *str;
/** The length in bytes of the string. */
size_t len;
};
/** Compare two @ref nstring keys for equality. */
static inline bool nstring_eq(const struct nstring *a, const struct nstring *b)
{
/*
* len == 0 is a special case because memcmp(NULL, NULL, 0) is
* technically undefined.
*/
return (a->len == b->len &&
(a->len == 0 || memcmp(a->str, b->str, a->len) == 0));
}
#endif /* DRGN_NSTRING_H */
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