[win32] change all 'sp' to 'SP' in code and in the docs. Explicitly

mention that local stack pointer should be called SP.  This makes the
API safer from source incompatibilities down the line.

p4raw-id: //depot/win32/perl@795

1 files changed, 13 insertions, 13 deletions

diff --git a/pp_hot.c b/pp_hot.c
index 4529f8e8bc..7ff4cab9f0 100644
--- a/pp_hot.c
+++ b/pp_hot.c
@@ -65,7 +65,7 @@ PP(pp_nextstate)
 PP(pp_gvsv)
 {
     djSP;
-    EXTEND(sp,1);
+    EXTEND(SP,1);
     if (op->op_private & OPpLVAL_INTRO)
 	PUSHs(save_scalar(cGVOP->op_gv));
     else
@@ -1265,7 +1265,7 @@ PP(pp_enter)
     ENTER;
 
     SAVETMPS;
-    PUSHBLOCK(cx, CXt_BLOCK, sp);
+    PUSHBLOCK(cx, CXt_BLOCK, SP);
 
     RETURN;
 }
@@ -1382,7 +1382,7 @@ PP(pp_iter)
     SV* sv;
     AV* av;
 
-    EXTEND(sp, 1);
+    EXTEND(SP, 1);
     cx = &cxstack[cxstack_ix];
     if (cx->cx_type != CXt_LOOP)
 	DIE("panic: pp_iter");
@@ -1714,7 +1714,7 @@ PP(pp_grepwhile)
     LEAVE;					/* exit inner scope */
 
     /* All done yet? */
-    if (stack_base + *markstack_ptr > sp) {
+    if (stack_base + *markstack_ptr > SP) {
 	I32 items;
 	I32 gimme = GIMME_V;
 
@@ -2038,9 +2038,9 @@ PP(pp_entersub)
 	    dMARK;
 	    register I32 items = SP - MARK;
 					/* We dont worry to copy from @_. */
-	    while (sp > mark) {
-		sp[1] = sp[0];
-		sp--;
+	    while (SP > mark) {
+		SP[1] = SP[0];
+		SP--;
 	    }
 	    stack_sp = mark + 1;
 	    fp3 = (I32(*)_((int,int,int)))CvXSUB(cv);
@@ -2069,9 +2069,9 @@ PP(pp_entersub)
 
 		if (items) {
 		    /* Mark is at the end of the stack. */
-		    EXTEND(sp, items);
-		    Copy(AvARRAY(av), sp + 1, items, SV*);
-		    sp += items;
+		    EXTEND(SP, items);
+		    Copy(AvARRAY(av), SP + 1, items, SV*);
+		    SP += items;
 		    PUTBACK ;		    
 		}
 	    }
@@ -2157,9 +2157,9 @@ PP(pp_entersub)
 	    items = AvFILLp(av) + 1;
 	    if (items) {
 		/* Mark is at the end of the stack. */
-		EXTEND(sp, items);
-		Copy(AvARRAY(av), sp + 1, items, SV*);
-		sp += items;
+		EXTEND(SP, items);
+		Copy(AvARRAY(av), SP + 1, items, SV*);
+		SP += items;
 		PUTBACK ;		    
 	    }
 	}