claybridges

NSString *HexNSStringFromBytes(uint8_t *bytes, NSUInteger count) {
    char *hexCString = calloc(count * 2 + 1, sizeof(char *));

    static char hexLookup[] = "0123456789abcdef";

    NSMutableString* testString = [NSMutableString string];
    for (int i = 0; i < count; ++i) {
        uint8_t fullByte = bytes[i];

        // each byte converts to two hex characters

claybridges

BOOL ProtocolContainsInstanceSelector(NSString *protocolName, SEL sel);
BOOL ProtocolContainsInstanceSelector(NSString *protocolName, SEL sel)
{
    Protocol *p = objc_getProtocol([protocolName cStringUsingEncoding:NSUTF8StringEncoding]);

    // must check for both required = {YES, NO}
    struct objc_method_description desc = protocol_getMethodDescription(p, sel, YES, YES);
    BOOL contains = desc.name != NULL && desc.types != NULL;

    if (!contains) {