From: Benjamin Peterson <benjamin@python.org>
Date: Sun, 28 Jun 2009 16:08:02 +0000 (+0000)
Subject: add two generic macros for peeking and setting in the stack
X-Git-Tag: v2.7a1~891
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8338ab92c8902f020cc2e052866bf6f8ae30ee1;p=thirdparty%2FPython%2Fcpython.git

add two generic macros for peeking and setting in the stack
---

diff --git a/Python/ceval.c b/Python/ceval.c
index dd91f5d0dc30..8f4640416b69 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -803,10 +803,12 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
 #define SECOND()	(stack_pointer[-2])
 #define THIRD() 	(stack_pointer[-3])
 #define FOURTH()	(stack_pointer[-4])
+#define PEEK(n)         (stack_pointer[-(n)])
 #define SET_TOP(v)	(stack_pointer[-1] = (v))
 #define SET_SECOND(v)	(stack_pointer[-2] = (v))
 #define SET_THIRD(v)	(stack_pointer[-3] = (v))
 #define SET_FOURTH(v)	(stack_pointer[-4] = (v))
+#define SET_VALUE(n, v) (stack_pointer[-(n)] = (v))
 #define BASIC_STACKADJ(n)	(stack_pointer += n)
 #define BASIC_PUSH(v)	(*stack_pointer++ = (v))
 #define BASIC_POP()	(*--stack_pointer)