MAX MACRO IN C 64 BITS
MAX MACRO IN C CODE

MAX MACRO IN C CODE

Function like macros is beneficial whenever the same code block should be executed numerous times since it avoids rewriting code multiple times. Whenever the name is used, it is replaced by the contents of the macro. Where the MAX is the name of the macro function, and it further checks for the maximum number present within the variable.

Thus, uint24_t denotes an unsigned integer type with a width of exactly 24 bits.Įach of the macros listed in below is defined if and only if the implementation defines the corresponding typedef name. 3 Macros ¶ A macro is a fragment of code which has been given a name. Typedef names of the form int N_t may only be defined if the implementation supports an integer type of that width with no padding. define MAX(x, y) (((x) > (y)) (x) : (y)) define MIN(x, y) (((x) < (y)) (x) : (y)) But this causes problems if you write something like MAX(++a, ++b). Preprocessors are a way of making text processing with your C program before they are actually compiled. Macro definitions are not variables and cannot be changed by your. You can define them yourself with macros like. C Programming/Preprocessor directives and macros. These macro definitions allow constant values to be declared for use throughout your code. The implementation may define typedef names int N_t, int_fast N_t, int_least N_t, uint N_t, uint_fast N_t, and uint_least N_t when N is not 8, 16, 32 or 64. Theres a std::min and std::max in C++, but AFAIK, theres no equivalent in the C standard library. Unsigned integer type capable of holding a pointer

Smallest unsigned integer type with width of Integer type capable of holding a pointerįastest unsigned integer type with width of Smallest signed integer type with width of For those who dont know what a macro is, basic example: define abs(x) (x > 0 x : -(x)) Which looks like a function, but instead abs() will be.

MAX MACRO IN C 64 BITS

(provided only if the implementation directly supports the type)įastest signed integer type with width ofĪt least 8, 16, 32 and 64 bits respectively With no padding bits and using 2's complement for negative values Exactly 8, 16, 32 and 64 bits respectively

Max macro in c