bcachefs-tools/linux/fs_parser.c

#include <linux/kernel.h>
#include <linux/fs_parser.h>
#include <string.h>

const struct constant_table bool_names[] = {
	{ "0",		false },
	{ "1",		true },
	{ "false",	false },
	{ "no",		false },
	{ "true",	true },
	{ "yes",	true },
	{ },
};

static const struct constant_table *
__lookup_constant(const struct constant_table *tbl, const char *name)
{
	for ( ; tbl->name; tbl++)
		if (strcmp(name, tbl->name) == 0)
			return tbl;
	return NULL;
}

/**
 * lookup_constant - Look up a constant by name in an ordered table
 * @tbl: The table of constants to search.
 * @name: The name to look up.
 * @not_found: The value to return if the name is not found.
 */
int lookup_constant(const struct constant_table *tbl, const char *name, int not_found)
{
	const struct constant_table *p = __lookup_constant(tbl, name);

	return p ? p->value : not_found;
}