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Is there a difference between unsigned short int and a unsigned short decleration in c and if so, what is it please ? I tried looking online, but couldn't find anything worthwhile.
unsigned short int x1;
unsigned short x2;
Lastly, if there is a difference, how can I cast them to each other respectively please?
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The standard mandates that the range is (as for short ) at least -32767 to 32767 , so an int must be at least 16 bits wide. For unsigned ( int and short ), the range must be at least 0 to 65535 , so that too must be at least 16 bits wide.
It is the smallest (16 bit) integer data type in C++. Some properties of the unsigned short int data type are: Being an unsigned data type, it can store only positive values. Takes a size of 16 bits.
There is no difference. unsigned and unsigned int are both synonyms for the same type (the unsigned version of the int type).
There's no difference. It's an unsigned short , actually the int keyword is optional for short or long declarations. The unsigned keyword may applied to all of these type declarations, and makes them just unsigned .
From C11 [PDF] (irrelevant parts omitted) (emphasis mine):
6.7.2.2:
At least one type specifier shall be given in the declaration specifiers in each declaration, and in the specifier-qualifier list in each struct declaration and type name. Each list of type specifiers shall be one of the following multisets (delimited by commas, when there is more than one multiset per item); the type specifiers may occur in any order, possibly intermixed with the other declaration specifiers.
- ...
short,signed short,short int, orsigned short intunsigned short, orunsigned short int- ...
6.7.2.5:
Each of the comma-separated multisets designates the same type ...
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Just using short is a short-hand (no pun intended) way of writing short int. Just a long is a short-hand for long int.
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