Open Menu / include / linux / minmax.h
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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Min/max and related utilities for U-Boot
 *
 * Based on Linux minmax.h - min, max, clamp, and range helpers.
 */
#ifndef _LINUX_MINMAX_H
#define _LINUX_MINMAX_H

#include <linux/types.h>

/**
 * in_range - check if value is within a range
 * @val: value to test
 * @start: start of range (inclusive)
 * @len: length of range
 *
 * Return: true if @val is in [@start, @start + @len), false otherwise
 */
static inline bool in_range(unsigned long val, unsigned long start,
			    unsigned long len)
{
	return val >= start && val < start + len;
}

/**
 * in_range64 - check if 64-bit value is within a range
 * @val: value to test
 * @start: start of range (inclusive)
 * @len: length of range
 *
 * Return: true if @val is in [@start, @start + @len), false otherwise
 */
static inline bool in_range64(u64 val, u64 start, u64 len)
{
	return (val - start) < len;
}

/**
 * in_range32 - check if 32-bit value is within a range
 * @val: value to test
 * @start: start of range (inclusive)
 * @len: length of range
 *
 * Return: true if @val is in [@start, @start + @len), false otherwise
 */
static inline bool in_range32(u32 val, u32 start, u32 len)
{
	return (val - start) < len;
}

/**
 * umin - Return the minimum of two unsigned values
 * @x: First value
 * @y: Second value
 *
 * Return: The smaller of @x and @y
 */
#define umin(x, y)	((x) < (y) ? (x) : (y))

/**
 * umax - Return the maximum of two unsigned values
 * @x: First value
 * @y: Second value
 *
 * Return: The larger of @x and @y
 */
#define umax(x, y)	((x) > (y) ? (x) : (y))

#endif /* _LINUX_MINMAX_H */