isIPhone6OrNewer.m

isIPhone6OrNewer.m

#include <sys/utsname.h>

+ (BOOL)isIPhone6OrNewer
{
    static int major = -1;
    
    if (major == -1) {
        struct utsname unameData;
        if (0 != uname(&unameData)) {
            major = 0;
        } else {
            NSString *code = [NSString stringWithCString:unameData.machine
                                                encoding:NSUTF8StringEncoding];
            if ([code hasPrefix:@"iPhone"])
                major = [code substringWithRange:NSMakeRange(6, 1)].intValue;
            else
                major = 0;
        }
    }
    
    return major >= 7;
}