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Integer literal - Wikipedia Integer literals frequently have prefixes indicating base, and less frequently suffixes indicating type [1] For example, in C++ 0x10ULL indicates the value 16 (because hexadecimal) as an unsigned long long integer Common prefixes include: 0x or 0X for hexadecimal (base 16); 0, 0o or 0O for octal (base 8); 0b or 0B for binary (base 2) Common suffixes include: l or L for long integer; ll or
C data types - Wikipedia Both of these types are defined in the <stddef h> header (cstddef in C++) size_t is an unsigned integer type used to represent the size of any object (including arrays) in the particular implementation The operator sizeof yields a value of the type size_t
Literal (computer programming) - Wikipedia In computer science, a literal is a textual representation (notation) of a value as it is written in source code [1][2] Almost all programming languages have notations for atomic values such as integers, floating-point numbers, and strings, and usually for Booleans and characters; some also have notations for elements of enumerated types and compound values such as arrays, records, and
Undefined behavior - Wikipedia int num = -1; unsigned int val = 1 << num; shifting by a negative number - undefined behavior num = 32; or whatever number greater than 31 val = 1 << num; the literal '1' is typed as a 32-bit integer - in this case shifting by more than 31 bits is undefined behavior num = 64; or whatever number greater than 63 unsigned long long
Signedness - Wikipedia Integer literals can be made unsigned with U suffix Compilers often issue a warning when comparisons are made between signed and unsigned numbers or when one is cast to the other These are potentially dangerous operations as the ranges of the signed and unsigned types are different
C syntax - Wikipedia However, for historic reasons, char is a type distinct from both signed char and unsigned char It may be signed or unsigned, depending on the compiler and the character set (the standard requires that members of the basic character set have positive values) Also, bit field types specified as int may be signed or unsigned, depending on the
List of CIL instructions - Wikipedia This is a list of the instructions in the instruction set of the Common Intermediate Language bytecode Opcode abbreviated from operation code is the portion of a machine language instruction that specifies the operation to be performed Base instructions form a Turing-complete instruction set Object model instructions provide an implementation for the Common Type System
Integer (computer science) - Wikipedia The value of an item with an integral type is the mathematical integer that it corresponds to Integral types may be unsigned (capable of representing only non-negative integers) or signed (capable of representing negative integers as well) [2] An integer value is typically specified in the source code of a program as a sequence of digits optionally prefixed with + or − Some programming