home *** CD-ROM | disk | FTP | other *** search
- /* varargs.h for SPUR */
-
- /* NB. This is NOT the definition needed for the new ANSI proposed
- standard */
-
-
- struct __va_struct { char __regs[20]; };
-
- #define va_alist __va_regs, __va_stack
-
- /* In GCC version 2, we want an ellipsis at the end of the declaration
- of the argument list. GCC version 1 can't parse it. */
-
- #if __GNUC__ > 1
- #define __va_ellipsis ...
- #else
- #define __va_ellipsis
- #endif
-
- /* The ... causes current_function_varargs to be set in cc1. */
- #define va_dcl struct __va_struct __va_regs; int __va_stack;
-
- typedef struct {
- int __pnt;
- char *__regs;
- char *__stack;
- } va_list;
-
- #define va_start(pvar) \
- ((pvar).__pnt = 0, (pvar).__regs = __va_regs.__regs, \
- (pvar).__stack = (char *) &__va_stack)
- #define va_end(pvar)
-
- /* Avoid errors if compiling GCC v2 with GCC v1. */
- #if __GNUC__ == 1
- #define __extension__
- #endif
-
- #define va_arg(pvar,type) \
- __extension__ \
- ({ type __va_result; \
- if ((pvar).__pnt >= 20) { \
- __va_result = *( (type *) ((pvar).__stack + (pvar).__pnt - 20)); \
- (pvar).__pnt += (sizeof(type) + 7) & ~7; \
- } \
- else if ((pvar).__pnt + sizeof(type) > 20) { \
- __va_result = * (type *) (pvar).__stack; \
- (pvar).__pnt = 20 + ( (sizeof(type) + 7) & ~7); \
- } \
- else if (sizeof(type) == 8) { \
- union {double d; int i[2];} __u; \
- __u.i[0] = *(int *) ((pvar).__regs + (pvar).__pnt); \
- __u.i[1] = *(int *) ((pvar).__regs + (pvar).__pnt + 4); \
- __va_result = * (type *) &__u; \
- (pvar).__pnt += 8; \
- } \
- else { \
- __va_result = * (type *) ((pvar).__regs + (pvar).__pnt); \
- (pvar).__pnt += (sizeof(type) + 3) & ~3; \
- } \
- __va_result; })
-