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Python pack / unpack converts to Objective C


Python pack / unpack converts to Objective C

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Python pack / unpack converts to Objective C
Tag : python , By : user103892
Date : December 01 2020, 05:00 PM

this one helps. First of all I want to say that you should try to learn Objective-C on a better level. It is not too hard (esp. coming from Python, because both languages are dynamically typed). However, I will give you some advises to your Q.
Let's have a closer view to your code:
NSArray *timouts = [NSArray arrayWithObjects:[NSString stringWithFormat:@"10000"],[NSString stringWithFormat:@"10000"],[NSString stringWithFormat:@"10000"],[NSString stringWithFormat:@"10"],nil];
NSArray *timeOuts = @[@10000, @10000, @10000, @10];
NSLog( @"%@", timeOuts );
NSMutableArray * bytes = [NSMutableArray arrayWithCapacity:4];
for (NSNumber *value in timeOuts) // Take out numbers
{
…
}
NSMutableArray *bytes = [NSMutableArray arrayWithCapacity:4];
for (NSNumber *value in timeOuts) // Take out numbers
{
   int intValue = [value intValue];
   …
}
NSMutableArray *bytes = [NSMutableArray arrayWithCapacity:4];
for (NSNumber *value in timeOuts) // Take out numbers
{
   int intValue = [value intValue];
   for( int x = 0; x < 4; x++ )
   {
     int byte = intValue & 0xFF000000; // Mask out bit 0-23
     [bytes addObject:@(byte)];  // Store byte
     intValue <<= 8;             // Shift up bit 0-23 to 8-31 for the next iteration

   }
}
NSLog( @"%@", bytes );
NSArray *timeOuts = @[@10000, @10000, @10000, @10];
NSLog( @"%@", timeOuts );

NSMutableArray *bytes = [NSMutableArray arrayWithCapacity:4];
for (NSNumber *value in timeOuts) // Take out numbers
{
   int intValue = [value intValue];
   for( int x = 0; x < 4; x++ )
   {
     int byte = intValue & 0xFF; // Mask out bit 8-31
     [bytes addObject:@(byte)];  // Store byte
     intValue >>= 8;             // Shift down bit 8-31 to 0-23 for the next iteration

   }
}
NSLog( @"%@", bytes );

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how to pack and unpack data using python 2.5


Tag : python , By : msugar
Date : March 29 2020, 07:55 AM
I wish this helpful for you As specified in §7.3.2.2. Format Characters of the Python manual, the format code for an unsigned 4-byte long is L.
struct.pack("!L", 104277)

When/why should I use struct library in python to pack and unpack?


Tag : python , By : cameron
Date : March 29 2020, 07:55 AM
I hope this helps you .
I cant understand when should I use pack and unpack functions in struct library in python?
>>> struct.pack("i",34)
'"\x00\x00\x00'

Python's struct.pack/unpack equivalence in C++


Tag : cpp , By : David B
Date : March 29 2020, 07:55 AM

Pack and Unpack Bits and Bytes in Python


Tag : python , By : Jonathan Bernard
Date : March 29 2020, 07:55 AM

pack and unpack at the right format in python


Tag : python , By : user147496
Date : March 29 2020, 07:55 AM
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