Can someOne explain List of #pragma warn directive warning code with explanation?

Answer 1

In c there are many warning messages which can be on or off with help of #pragma warn.
Syntax:

pragma warn +xxx

pragma warn –xxx

pragma warn .xxx

Where
+ means on
- means off
. means on/off (toggle)

xxx is indicate particular warning code in three alphabet. Example: rvl is warning code which means function should return a value.

    #include<stdio.h>
    #pragma warn –rvl
    int main()
    {
        printf("It will not show any warning message");
        return 0;
    }

    Output: It will not show any warning message

When you will execute the above program then compiler will not show the warning message function should return a value because rvl warning is off.
Please check List of warning code