syn68k/syngen/uniquestring.c
2008-09-26 08:25:10 -06:00

38 lines
557 B
C

#include "hash.h"
#include "uniquestring.h"
#include "common.h"
#include <string.h>
#include <stdlib.h>
#include <assert.h>
static SymbolTable *sym = NULL;
void
init_unique_string ()
{
if (sym == NULL)
sym = make_symbol_table ();
}
const char *
unique_string (const char *s)
{
SymbolInfo si;
const char *p;
if (lookup_symbol (sym, s, &si, &p) != HASH_NOERR)
{
char *newp;
newp = malloc (strlen (s) + 1);
assert(newp);
strcpy (newp, s);
insert_symbol (sym, newp, si);
p = newp;
}
return p;
}