How to do hex to float conversion correctly?

Question

Arduino

Good day. I am studying programming MK STM32F103, a problem arose. Why does this conversion error occur?
float Variable;
Variable = 0x3EAE147B; // in decimal - 0.340
Immediately after this operation, the debugger writes that Variable is equal to 0x4E7AB852, so the number is completely different (1.015).
Thanks for the help!

Answer 1

We've given float an integer. Union must be used.

union {
        float asF;
        uint32_t asI;
    };
    asF = 0x3EAE147B; // в десятичной - 0.340
    std::cout << asF << ' ' << std::hex << asI << std::endl;
    asI = 0x3EAE147B;
    std::cout << asF << ' ' << std::hex << asI << std::endl;
    return 0;

Answer 2

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