C Language Notes

The argument passed to the main() function while executing the program is known as command line argument. In C programming, command line arguments are parameters passed to a program when it is executed from the command line or terminal. These arguments allow users to customize the behavior of the program without modifying its source code. … Read more

The Token is an identifier. It can be constant, keyword, string literal, etc. A token is the smallest individual unit in a program. C has the following tokens: Identifiers: Identifiers refer to the name of the variables. Keywords: Keywords are the predefined words that are explained by the compiler. Constants: Constants are the fixed values … Read more

Yes, we can compile, but it can’t be executed. No, you cannot compile a program without a main() function in C. The main() function serves as the entry point for C programs. When you compile a C program, the compiler looks for the main() function to start the execution of the program. If it’s not … Read more

The sprintf() stands for “string print.” The sprintf() function does not print the output on the console screen. It transfers the data to the buffer. It returns the total number of characters present in the string. In C, the sprintf() function is used to format and store a series of characters and values into a … Read more

In C, every local variable of a function is known as an automatic (auto) variable. Variables which are declared inside the function block are known as a local variable. The local variables are also known as an auto variable. It is optional to use an auto keyword before the data type of a variable. If … Read more