How can a number be converted to a string?

Can a number be converted to a string?

• A pointer to an array of char items that must be converted is sent to the function, and a format string must be put in a buffer as a string.

#include<stdio.h> 

#include<conio.h> 

#include <math.h>

int main() 

{ 

    char str[80]; 

 

    sprintf(str, "The value of PI = %f", M_PI); 

    puts(str);

    getch();

}

Below is the output after running the above code:

Output: Value of Pi = 3.141593

Number to String

Why n++ execute faster than n+1 ?

• Because n++ is a unary operation, it just requires one variable. n = n + 1 is a binary operation that adds overhead to take longer (also binary operation: n += 1), whereas n = n + 1 is a binary operation that adds overhead to take longer (also binary operation: n += 1). 
• However, on current systems, it is dependent on a number of factors, including CPU architecture, C compiler, code use, and other considerations such as hardware issues.
• Even if you write n = n + 1 in a contemporary compiler, it will be transformed to n++ when it enters the optimized binary, and it will be equivalently efficient.