How to find ASCII value of character in c

#include <stdio.h>
 
#define TRUE      1
 
void clear_buffer( void )
{
     int ch;
 
     while( ( ch = getchar() ) != '\n' && ch != EOF );
} 
 
int main()
{
    unsigned int ch;
 
    while( TRUE )
    {
        printf("\nsingle char please - " ); 
        ch = getchar();
        clear_buffer();
 
        printf("%c - %d", ch, ch );
    } 
}    
 
/* my output
single char please - a
a - 97
single char please - s
s - 115
single char please - d
d - 100
single char please -
*/

int myNum = 'a';

#include<stdio.h>
 
void main (void)
{
    char x; 
    printf("\nEnter a Character : ");
    x = getchar();
   printf("\nThe ASCII for Char is: %d",x);
 
 }

#include<stdio.h>
int main ()
{
    char x; 
    printf("\nEnter a Character : ");
    x = getchar();
   printf("\nThe ASCII for Char is: %d",x);
   return 0;/*** was avoiding this line ****/
 }