/* return a pointer to a symbol table entry that
has the name field being 'sym'
return NULL if there is no symbol table entry with the name
being 'sym'.
*/
SYMTBL symtbl_lookup(char *sym)
{
}
/* return a pointer to a symbol table entry that
has the name field being 'sym'
return NULL if there is no symbol table entry with the name
being 'sym'.
*/
SYMTBL symtbl_lookup(char *sym)
{
}