DeclValidn.h

#include <stdio.h>
#include <string.h>
#include <math.h>


struct symrec
{
  char *name;             /* name of symbol          */
  struct symrec *next;    /* link field              */
};
typedef struct symrec symrec;
symrec *sym_table = (symrec *)0;
symrec *putsym ();
symrec *getsym ();


symrec * putsym ( char *sym_name )
{
  symrec *ptr;
  ptr = (symrec *) malloc (sizeof(symrec));
  ptr->name = (char *) malloc (strlen(sym_name)+1);
  strcpy (ptr->name,sym_name);
  ptr->next = (struct symrec *)sym_table;
  sym_table = ptr;
  return ptr;
}
symrec * getsym ( char *sym_name )
{
  symrec *ptr;
  for (ptr = sym_table; ptr != (symrec *) 0;
       ptr = (symrec *)ptr->next)
    if (strcmp (ptr->name,sym_name) == 0)
      return ptr;
  return 0;
}