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C Exercises: Get the C version

C Basic Declarations and Expressions: Exercise-2 with Solution

Write a C program to get the C version you are using.

C Code:

#include <stdio.h> 
int main(int argc, char** argv) {
#if __STDC_VERSION__ >=  201710L
  printf("We are using C18!\n");
#elif __STDC_VERSION__ >= 201112L
  printf("We are using C11!\n");
#elif __STDC_VERSION__ >= 199901L
  printf("We are using C99!\n");
#else
  printf("We are using C89/C90!\n");
#endif
  return 0;
}

Sample Output:

We are using C18!

Flowchart:

C Programming Flowchart: Get the C version

C Programming Code Editor:

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP