Read binary file in C skip byte of 0

Question

When i read a binary file the program skip the byte who are equal to 0. There is my program in C :

int main(int argc, char const *argv[])
{
        FILE * input_file = fopen("binary.bin", "rb");
        uint32_t b = 0 ;
        fread(&b, sizeof(uint32_t) , 1 , input_file);

        printf("----- Here are the data stored in the file -----\n");
        printf("First uint_32 : %d\n", b);
        printf("------------------------------------------------\n");

    return 0;
}

The output :

----- Here are the data stored in the file ----- 
First uint_32 : 16777216 
------------------------------------------------

The binary file :

xxd -b binary.bin
00000000: 00000000 00000000 00000000 00000001 00000000 00000000  ......
00000006: 00000000 00110010 00000000 00000000 00000000 01100100  .2...d
0000000c: 00000000 00000000 00000000 00010100 00000000 00000000  ......
00000012: 00000000 00000000 00000000 00000000 01011001 00110000  ....Y0

Why the output is not 1 ?

Answer 1

You got 16777216 as an output.

Let's see its binary representation

00000001000000000000000000000000

That's due to how data is written in the memory depending on the architecture of the system.

That's endianness of the system. You should read about little-endian and big-endian