Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Can anyone tell sth about what is int data type in C++, drilling the headers I can find
typedef int INT;
What/where is the linkage between type in text code and physical storage in RAM? Compiler must know what is this int. And I ask – where it is explained to compiler?
An
intis an integer. At the most rudimentary level, it is simply a set of bytes intepreted as a numeric value. Modern processors (and operating systems) support multiple sizes of integer, though 32-bit and 64-bit (4 and 8 bytes respectively) are most common.In terms of representation in hardware, they’re simply data lines set to high and low voltages. A 32-bit parallel data bus will have 32 data lines, each representing one bit. If you want to represent the number 100, you convert it to a binary representation (i.e.
1100100) and therefore set lines 3, 6 and 7 high, and the rest low. The processor and other microcontrollers can interpret this signal based on their internal functionality and programming.