min.h

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#ifndef MIN_H
#define MIN_H
 
[[gnu::always_inline]]
static inline signed int min2_signed(signed int a, signed int b) {
    return (a < b) ? a : b;
}
 
[[gnu::always_inline]]
static inline unsigned int min2_unsigned(unsigned int a, unsigned int b) {
    return (a < b) ? a : b;
}
 
[[gnu::always_inline]]
static inline float min2_float(float a, float b) {
    return (a < b) ? a : b;
}
 
#define MINOF2(a, b) _Generic((a) + (b), \
    signed int: min2_signed, \
    unsigned int: min2_unsigned, \
    float: min2_float \
)(a, b)
 
#define MINOF3(a, b, c) MINOF2(MINOF2(a, b), c)
#define MINOF4(a, b, c, d) MINOF2(MINOF2(a, b), MINOF2(c, d))
// if you need more than four arguments, just add them here
 
// dispatcher macro selects the correct MINOF function based on the number of arguments
#define DISPATCH_MINOF(_1, _2, _3, _4, NAME, ...) NAME
#define MINOF(...) DISPATCH_MINOF(__VA_ARGS__, MINOF4, MINOF3, MINOF2)(__VA_ARGS__)
 
#endif // MIN_H