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- /* c-vararg.h: Top layer for stdarg and varargs.
-
- Copyright (C) 1993 Karl Berry.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #ifndef C_VARARG_H
- #define C_VARARG_H
-
- /* See `kpathsea/init-path.c' for an example of use. The idea is to say
- PVAR1(type1, parameter1, ap) in the function header, and then end
- the function with two }}'s. We do this to avoid having to specify
- the argument list (with types) twice -- once in the function header,
- and once in a (hypothetical) VA_START1. */
-
- #if __STDC__
- #include <stdarg.h>
-
- #define PVAR1H(p1) (p1, ...)
- #define PVAR2H(p1, p2) (p1, p2, ...)
- #define PVAR3H(p1, p2, p3) (p1, p2, p3, ...)
-
- #define PVAR1C(t1, n1, ap) \
- (t1 n1, ...) { va_list ap; va_start (ap, n1);
- #define PVAR2C(t1, n1, t2, n2, ap) \
- (t1 n1, t2 n2, ...) { va_list ap; va_start (ap, n2);
- #define PVAR3C(t1, n1, t2, n2, t3, n3, ap) \
- (t1 n1, t2 n2, t3 n3, ...) { va_list ap; va_start (ap, n3);
-
- #else /* not __STDC__ */
- #include <varargs.h>
-
- #define PVAR1H(p1) ()
- #define PVAR2H(p1, p2) ()
- #define PVAR3H(p1, p2, p3) ()
-
- #define PVAR1C(t1, n1, ap) \
- (va_alist) va_dcl { t1 n1; va_list ap; va_start (ap); \
- n1 = va_arg (ap, t1);
- #define PVAR2C(t1, n1, t2, n2, ap) \
- (va_alist) va_dcl { t1 n1; t2 n2; va_list ap; va_start (ap); \
- n1 = va_arg (ap, t1); n2 = va_arg (ap, t2);
- #define PVAR3C(t1, n1, t2, n2, t3, n3, ap) \
- (va_alist) va_dcl { t1 n1; t2 n2; t3 n3; va_list ap; va_start (ap); \
- n1 = va_arg (ap, t1); n2 = va_arg (ap, t2); \
- n3 = va_arg (ap, t3);
- #endif /* not __STDC__ */
-
- #endif /* not C_VARARG_H */
-