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-rw-r--r--proto.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/proto.h b/proto.h
index 6918e1f..aac2547 100644
--- a/proto.h
+++ b/proto.h
@@ -111,6 +111,7 @@ extern double getfval(Cell *);
extern char *getsval(Cell *);
extern char *getpssval(Cell *); /* for print */
extern char *tostring(const char *);
+extern char *tostringN(const char *, size_t);
extern char *qstring(const char *, int);
extern Cell *catstr(Cell *, Cell *);
@@ -135,9 +136,12 @@ extern void yyerror(const char *);
extern void fpecatch(int);
extern void bracecheck(void);
extern void bcheck2(int, int, int);
-extern void SYNTAX(const char *, ...);
-extern void FATAL(const char *, ...) __attribute__((__noreturn__));
-extern void WARNING(const char *, ...);
+extern void SYNTAX(const char *, ...)
+ __attribute__((__format__(__printf__, 1, 2)));
+extern void FATAL(const char *, ...)
+ __attribute__((__format__(__printf__, 1, 2), __noreturn__));
+extern void WARNING(const char *, ...)
+ __attribute__((__format__(__printf__, 1, 2)));
extern void error(void);
extern void eprint(void);
extern void bclass(int);