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/*
* lfs utility functions
*
* Copyright (c) 2017 Christopher Haster
* Distributed under the MIT license
*/
#ifndef LFS_UTIL_H
#define LFS_UTIL_H
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
// Builtin functions
static inline uint32_t lfs_max(uint32_t a, uint32_t b) {
return (a > b) ? a : b;
}
static inline uint32_t lfs_min(uint32_t a, uint32_t b) {
return (a < b) ? a : b;
}
static inline uint32_t lfs_ctz(uint32_t a) {
return __builtin_ctz(a);
}
static inline uint32_t lfs_npw2(uint32_t a) {
return 32 - __builtin_clz(a-1);
}
static inline int lfs_scmp(uint32_t a, uint32_t b) {
return (int)(unsigned)(a - b);
}
void lfs_crc(uint32_t *crc, const void *buffer, size_t size);
// Logging functions
#define LFS_DEBUG(fmt, ...) printf("lfs debug: " fmt "\n", __VA_ARGS__)
#define LFS_WARN(fmt, ...) printf("lfs warn: " fmt "\n", __VA_ARGS__)
#define LFS_ERROR(fmt, ...) printf("lfs error: " fmt "\n", __VA_ARGS__)
#endif
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