[Solved] How to store uint32_ts in an array of uint8_ts

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The portable way to manipulate raw byte arrays is std::memcpy and char buffers.

uint32_t toBeSent = 42;
char buffer[sizeof toBeSent];

std::memcpy(&buffer, &toBeSent, sizeof toBeSent);
sendBuffer(buffer);

// ...

uint32_t toBeReceived;
char buffer[sizeof toBeReceived];

receiveBuffer(buffer);
std::memcpy(&toBeReceived, &buffer, sizeof toBeReceived);

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solved How to store uint32_ts in an array of uint8_ts