Create array of bytes in C

hi,
not have programming background. in following obj-c code create array of bytes must convert bytes string hex format work further. not idea. create array in c directly without converting string. how can it? thank you!

in obj-c + c:

nsdata *data = [nsdata datawithcontentsoffile:file];
const unsigned char *bytes = [data bytes];
for (int = 0; < [bytes count]; i++) {
unsigned char array = (int)bytes; // in c
}
printf("array: %d", array);

php:

    nsdata *data = [nsdata datawithcontentsoffile:file];
    const unsigned char *bytes = [data bytes];
    nsmutablearray *array = [nsmutablearray array];
    
    for (int i = 0; i < [bytes count]; i++) {
        nsstring *bytesasstring = [nsstring stringwithformat:@"%02x", (int)bytes[i]];
        [array addobject:bytesasstring];
    }
    
    nslog(@"%@", array);


 

it seems me second line gets array of bytes. don't think you're expressing need data start , want enough.

-lee

 

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