Make C char array from NSString object in Obj-C

I want to make a C char array from NSString object in Obj-C.

My string is:

NSString *string 开发者_StackOverflow社区= [[NSString alloc] initWithContentsOfURL:url usedEncoding:nil error:nil];

Can someone send me a sample of a working code?

Thanks in advance,

Sagiftw

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You can use the UTF8String method:

const char *str = [string UTF8String];

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NSData *data = [string dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];

void *bytes = [data bytes];

(Credit: NSString - Unicode to ASCII equivalent)

Or as one line:

void *bytes = [[string dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES] bytes];