Int from NSData

Question

I have a NSData object with 4 bytes length. I know this 4 bytes construcuts a positive integer. How should I get the int from those NSdata object?

Answer 1

I have found the solution here.

char buffer[4]; 

[data getBytes:buffer length:4]; 

int dataSize = 0; 

char cBuf2[4]; 

for(int k=0;k < 4; ++k) {

 cBuf2[k] = buffer[3-k]; 

} 

memcpy(&dataSize, cBuf2, 4); 

NSLog(@"Zip stream size :%d", dataSize);