[src/trunk]: src/usr.bin/make make(1): improve variable names in SuffRebuildG...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d261236d391e
branches:  trunk
changeset: 1015449:d261236d391e
user:      rillig <rillig%NetBSD.org@localhost>
date:      Fri Oct 23 20:15:19 2020 +0000

description:
make(1): improve variable names in SuffRebuildGraph

diffstat:

 usr.bin/make/suff.c |  41 +++++++++++++++++++++--------------------
 1 files changed, 21 insertions(+), 20 deletions(-)

diffs (84 lines):

diff -r 19d3062e4670 -r d261236d391e usr.bin/make/suff.c
--- a/usr.bin/make/suff.c       Fri Oct 23 20:14:50 2020 +0000
+++ b/usr.bin/make/suff.c       Fri Oct 23 20:15:19 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: suff.c,v 1.218 2020/10/23 18:36:09 rillig Exp $        */
+/*     $NetBSD: suff.c,v 1.219 2020/10/23 20:15:19 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -129,7 +129,7 @@
 #include "dir.h"
 
 /*     "@(#)suff.c     8.4 (Berkeley) 3/21/94" */
-MAKE_RCSID("$NetBSD: suff.c,v 1.218 2020/10/23 18:36:09 rillig Exp $");
+MAKE_RCSID("$NetBSD: suff.c,v 1.219 2020/10/23 20:15:19 rillig Exp $");
 
 #define SUFF_DEBUG0(text) DEBUG0(SUFF, text)
 #define SUFF_DEBUG1(fmt, arg1) DEBUG1(SUFF, fmt, arg1)
@@ -603,25 +603,26 @@
  *
  * Input:
  *     transform       Transformation to test
- *     s               Suffix to rebuild
+ *     suff            Suffix to rebuild
  */
 static void
-SuffRebuildGraph(GNode *transform, Suff *s)
+SuffRebuildGraph(GNode *transform, Suff *suff)
 {
     char *name = transform->name;
     size_t nameLen = strlen(name);
-    char *cp;
+    char *prefixName;
+    const char *suffixName;
 
     /*
      * First see if it is a transformation from this suffix.
      */
-    cp = UNCONST(SuffStrIsPrefix(s->name, name));
-    if (cp != NULL) {
-       Suff *s2 = FindSuffByName(cp);
-       if (s2 != NULL) {
+    suffixName = SuffStrIsPrefix(suff->name, name);
+    if (suffixName != NULL) {
+       Suff *to = FindSuffByName(suffixName);
+       if (to != NULL) {
            /* Link in and return, since it can't be anything else. */
-           SuffInsert(s2->children, s);
-           SuffInsert(s->parents, s2);
+           SuffInsert(to->children, suff);
+           SuffInsert(suff->parents, to);
            return;
        }
     }
@@ -629,20 +630,20 @@
     /*
      * Not from, maybe to?
      */
-    cp = SuffSuffGetSuffix(s, nameLen, name + nameLen);
-    if (cp != NULL) {
-       Suff *s2;
+    prefixName = SuffSuffGetSuffix(suff, nameLen, name + nameLen);
+    if (prefixName != NULL) {
+       Suff *from;
 
        /* Null-terminate the source suffix in order to find it. */
        /* XXX: don't modify strings, not even temporarily */
-       cp[0] = '\0';
-       s2 = FindSuffByName(name);
-       cp[0] = s->name[0];             /* restore */
+       prefixName[0] = '\0';
+       from = FindSuffByName(name);
+       prefixName[0] = suff->name[0];  /* restore */
 
-       if (s2 != NULL) {
+       if (from != NULL) {
            /* establish the proper relationship */
-           SuffInsert(s->children, s2);
-           SuffInsert(s2->parents, s);
+           SuffInsert(suff->children, from);
+           SuffInsert(from->parents, suff);
        }
     }
 }