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Does the unsigned keyword default to a specific data type in C++? I am trying to write a function for a class for the prototype:
unsigned Rotate(unsigned object, int count) But I don't really get what unsigned means. Shouldn't it be like unsigned int or something?
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An unsigned Integer means the variable can hold only a positive value. This format specifier is used within the printf() function for printing the unsigned integer variables.
The term "unsigned" in computer programming indicates a variable that can hold only positive numbers. The term "signed" in computer code indicates that a variable can hold negative and positive values. The property can be applied to most of the numeric data types including int, char, short and long.
The keyword unsigned is a data type specifier, which only represents non-negative integers i.e. positive numbers and zero.
An unsigned data type simply means that the data type will only hold positive values; negatives aren't allowed to be stored in the data type. Unsigned data types include int, char, short, and long.
From the link above:
Several of these types can be modified using the keywords signed, unsigned, short, and long. When one of these type modifiers is used by itself, a data type of int is assumed
This means that you can assume the author is using ints.
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Integer Types:
short -> signed short signed short unsigned short int -> signed int signed int unsigned int signed -> signed int unsigned -> unsigned int long -> signed long signed long unsigned long Be careful of char:
char (is signed or unsigned depending on the implmentation) signed char unsigned char If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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