fix warning

[libfirm] / ir / ident / ident.c

diff --git a/ir/ident/ident.c b/ir/ident/ident.c
index af6bc04..b8cbd83 100644 (file)
--- a/ir/ident/ident.c
+++ b/ir/ident/ident.c
@@ -29,6 +29,7 @@
 
 #include <assert.h>
 #include <ctype.h>
+#include <stdio.h>
 #include <string.h>
 #include <stddef.h>
 #include <stdlib.h>
@@ -337,6 +338,16 @@ int id_contains_char(ident *id, char c)
   return strchr(get_id_str(id), c) != NULL;
 }
 
+ident *id_unique(const char *tag)
+{
+       static unsigned unique_id = 0;
+       char buf[256];
+
+       snprintf(buf, sizeof(buf), tag, unique_id);
+       unique_id++;
+       return new_id_from_str(buf);
+}
+
 #ifdef FIRM_ENABLE_WCHAR
 
 ident *new_id_from_wcs (const wchar_t *str)