What is the use of
          #pragma section
directive in C language ?
This #pragma directive allows a directive to be defined. Its effects are implementation-defined. If the pragma is not supported, then it is ignored.
Syntax:
#pragma directive
#elif directive creates conditional compiling parameters that control the compiling of the source code. Syntax:
#if constant_expression
#elif constant_expression
#endif
 
    
    #pragma C standard for providing additional information to the compiler
#elif is else if precompiler directive such as 
 #if X == 1
     ...
 #elif X == 2
     ...
 #else 
    ....
 #endif 
