#include <stdint.h>
#include <string.h>

enum
{
    FIRST_SHIFT = 31,
    F_SEC_SHIFT = 1,
    S_SEC_SHIFT = 24,
    THIRD_SHIFT = 9,
    EXP_CONST = 255
};

FPClass fpclassf(float value, int *psign) {
    uint32_t new_val;
    memcpy(&new_val, &value, sizeof(value));
    uint32_t sign = new_val >> FIRST_SHIFT;
    uint32_t exp = (new_val << F_SEC_SHIFT) >> S_SEC_SHIFT;
    uint32_t mant = (new_val << THIRD_SHIFT) >> THIRD_SHIFT;
    printf("SIGN %u\n", sign);
    printf("EXP %u\n", exp);
    printf("MANT %u\n", mant);
    if (exp == 0 && mant == 0) {
        *psign = sign;
        return FFP_ZERO;
    } else if (mant != 0 && exp == 0) {
        *psign = sign;
        return FFP_DENORMALIZED;
    } else if (mant != 0 && exp != 0) {
        *psign = sign;
        return FFP_NORMALIZED;
    } else if (mant == 0 && exp == EXP_CONST) {
        *psign = sign;
        return FFP_INF;
    } else {
        *psign = 0;
        return FFP_NAN;
    }
}