unleashed-firmware/core/furi/common_defines.h

#pragma once

#ifndef MAX

#define MAX(a, b)               \
    ({                          \
        __typeof__(a) _a = (a); \
        __typeof__(b) _b = (b); \
        _a > _b ? _a : _b;      \
    })
#endif

#ifndef MIN
#define MIN(a, b)               \
    ({                          \
        __typeof__(a) _a = (a); \
        __typeof__(b) _b = (b); \
        _a < _b ? _a : _b;      \
    })
#endif

#ifndef CLAMP
#define CLAMP(x, upper, lower) (MIN(upper, MAX(x, lower)))
#endif

// need some common semantics for those two
#ifndef SIZEOF_ARRAY
#define SIZEOF_ARRAY(arr) (sizeof(arr) / sizeof(arr[0]))
#endif

#ifndef COUNT_OF
#define COUNT_OF(x) (sizeof(x) / sizeof(x[0]))
#endif

#ifndef FURI_SWAP
#define FURI_SWAP(x, y)     \
    do {                    \
        typeof(x) SWAP = x; \
        x = y;              \
        y = SWAP;           \
    } while(0)
#endif