Read uint32_t values from file

问题

I'd like to read uint32_t integers from a file using the code below. ifstream only accepts a pointer to a char array. Is there another way to read uint32_t values using a code similar to the below?

int readCount;
uint32_t buffer[SIZE];
while ( fin.read( &buffer[0], SIZE)
        || (readCount = fin.gcount()) != 0 ) {
    // some code
}

回答1:

Use a cast, e.g.:

if (fin.read(reinterpret_cast<char *>(buffer), sizeof buffer) &&
    fin.gcount() == sizeof buffer)
{
    // use buf
}

(Interpreting any object as an array of characters is expressly allowed, precisely for the purpose of I/O.)

来源：https://stackoverflow.com/questions/23418818/read-uint32-t-values-from-file