[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, 8 insertions, 8 deletions

diff --git a/pp_sys.c b/pp_sys.c
index 8058fb2656..ccb64ab47f 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -648,9 +648,9 @@ PP(pp_dbmopen)
     }
 
     ENTER;
-    PUSHMARK(sp);
+    PUSHMARK(SP);
 
-    EXTEND(sp, 5);
+    EXTEND(SP, 5);
     PUSHs(sv);
     PUSHs(left);
     if (SvIV(right))
@@ -663,8 +663,8 @@ PP(pp_dbmopen)
     SPAGAIN;
 
     if (!sv_isobject(TOPs)) {
-	sp--;
-	PUSHMARK(sp);
+	SP--;
+	PUSHMARK(SP);
 	PUSHs(sv);
 	PUSHs(left);
 	PUSHs(sv_2mortal(newSViv(O_RDONLY)));
@@ -3978,7 +3978,7 @@ PP(pp_ehostent)
     djSP;
 #ifdef HAS_ENDHOSTENT
     endhostent();
-    EXTEND(sp,1);
+    EXTEND(SP,1);
     RETPUSHYES;
 #else
     DIE(no_sock_func, "endhostent");
@@ -3990,7 +3990,7 @@ PP(pp_enetent)
     djSP;
 #ifdef HAS_ENDNETENT
     endnetent();
-    EXTEND(sp,1);
+    EXTEND(SP,1);
     RETPUSHYES;
 #else
     DIE(no_sock_func, "endnetent");
@@ -4002,7 +4002,7 @@ PP(pp_eprotoent)
     djSP;
 #ifdef HAS_ENDPROTOENT
     endprotoent();
-    EXTEND(sp,1);
+    EXTEND(SP,1);
     RETPUSHYES;
 #else
     DIE(no_sock_func, "endprotoent");
@@ -4014,7 +4014,7 @@ PP(pp_eservent)
     djSP;
 #ifdef HAS_ENDSERVENT
     endservent();
-    EXTEND(sp,1);
+    EXTEND(SP,1);
     RETPUSHYES;
 #else
     DIE(no_sock_func, "endservent");