Below is list of ranges along with the memory requirement and format specifiers on 32 bit gcc compiler. > What is the range of unsigned long int in C? The range of unsigned int is larger than the range of the signed int. The lower bound, as for any unsigned type, is 0. In C programming language, integer data is represented by its own in-built datatype known as int. Please keep in mind that storage size and range for int and float datatype will vary depend on the CPU processor (8,16, 32 and 64 bit) C Data types / storage Size: Range: char / 1 –127 to 127: int / 2 ... unsigned long int / 4: 0 to 4,294,967,295: unsigned long long int / 8: 2(power)64 –1: 2. Enumeration data type in C language: char and int.. When we will shift the signed negative value then its results depend on the implementation. The upper bound is given by the macro [code ]ULONG_MAX[/code], defined in the header. These ranges may vary from compiler to compiler. printf("Unsigned int values range: %u\n", (unsigned int) UINT_MAX); return 0;} Output: Explanation: So in general, in C we have signed and unsigned integer data types to declare in the program. C++ unsigned int is the data types that contain integers in the form of non-negative whole numbers only. Signed type modifier in C: For an int data type, if we don't mention type modifier, By default it will be considered as a signed type modifier. C/C++ provides various data types that can be used in your programs. An unsigned integer is a 32-bit datum that encodes a nonnegative integer in the range [0 to 4294967295]. The overflow of unsigned int is fully defined by the c standard community but not defined for the signed int. The most important thing that we need to keep in mind is, both signed and unsigned type modifiers are applied only to data types of the integer family i.e. Range of char = -128 to 127 Range of unsigned char = 0 to 255 Range of short = -32768 to 32767 Range of unsigned short = 0 to 65535 Range of int = -2147483648 to 2147483647 Range of unsigned int = 0 to 4294967295 Range of long = -2147483648 to 2147483647 Range of unsigned long = 0 to 4294967295 Range of long long = -9223372036854775808 to 9223372036854775807 Range of unsigned … Definition of C++ unsigned int. Basic types Main types. Below I am discussing few points in favor of unsigned int. An unsigned long long (and, on a 64-bit implementation, possibly also ulong and possibly uint as well) have a range (at least) from 0 to 18,446,744,073,709,551,615 (2 64 -1). The signed integer is represented in twos complement notation. A 32-bit unsigned int has a range from 0 to 4,294,967,295. 0 to 65535 would be a 16-bit unsigned. 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