From: Nicholas Clark <nick@ccl4.org>
Date: Sat, 22 Oct 2005 12:08:34 +0000 (+0000)
Subject: Mark more static Encode data structures as const.
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=0629a5b339b45d14dcfb89e3642fe75983f27c16;p=p5sagit%2Fp5-mst-13.2.git

Mark more static Encode data structures as const.

p4raw-id: //depot/perl@25821
---

diff --git a/ext/Encode/Encode.xs b/ext/Encode/Encode.xs
index 8e225cd..274fae0 100644
--- a/ext/Encode/Encode.xs
+++ b/ext/Encode/Encode.xs
@@ -89,7 +89,7 @@ do_fallback_cb(pTHX_ UV ch)
 }
 
 static SV *
-encode_method(pTHX_ encode_t * enc, encpage_t * dir, SV * src,
+encode_method(pTHX_ const encode_t * enc, const encpage_t * dir, SV * src,
 	      int check, STRLEN * offset, SV * term, int * retcode)
 {
     STRLEN slen;
diff --git a/ext/Encode/Encode/encode.h b/ext/Encode/Encode/encode.h
index 94764a6..7a2fa26 100644
--- a/ext/Encode/Encode/encode.h
+++ b/ext/Encode/Encode/encode.h
@@ -18,7 +18,7 @@ struct encpage_s
 	/* fields ordered to pack nicely on 32-bit machines */
 	const U8   *seq;       /* Packed output sequences we generate 
 				  if we match */
-	encpage_t  *next;      /* Page to go to if we match */
+	const encpage_t  *next;      /* Page to go to if we match */
 	U8         min;        /* Min value of octet to match this entry */
 	U8         max;        /* Max value of octet to match this entry */
 	U8         dlen;       /* destination length - 
@@ -60,10 +60,10 @@ struct encpage_s
 typedef struct encode_s encode_t;
 struct encode_s
 {
-	encpage_t  *t_utf8;    /* Starting table for translation from 
-				  the encoding to UTF-8 form */
-	encpage_t  *f_utf8;    /* Starting table for translation 
-				  from UTF-8 to the encoding */
+	const encpage_t  *t_utf8;    /* Starting table for translation from 
+					the encoding to UTF-8 form */
+	const encpage_t  *f_utf8;    /* Starting table for translation 
+					from UTF-8 to the encoding */
 	const U8   *rep;       /* Replacement character in this encoding 
 				  e.g. "?" */
 	int        replen;     /* Number of octets in rep */
@@ -75,7 +75,7 @@ struct encode_s
 #ifdef U8
 /* See comment at top of file for deviousness */
 
-extern int do_encode(encpage_t *enc, const U8 *src, STRLEN *slen,
+extern int do_encode(const encpage_t *enc, const U8 *src, STRLEN *slen,
                      U8 *dst, STRLEN dlen, STRLEN *dout, int approx,
 		     const U8 *term, STRLEN tlen);
 
diff --git a/ext/Encode/bin/enc2xs b/ext/Encode/bin/enc2xs
index da89552..ae2a166 100644
--- a/ext/Encode/bin/enc2xs
+++ b/ext/Encode/bin/enc2xs
@@ -279,7 +279,7 @@ if ($doC)
     my @info = ($e2u->{Cname},$u2e->{Cname},qq((U8 *)"$rep"),$replen,$min_el,$max_el);
     my $sym = "${enc}_encoding";
     $sym =~ s/\W+/_/g;
-    print C "encode_t $sym = \n";
+    print C "const encode_t $sym = \n";
     # This is to make null encoding work -- dankogai
     for (my $i = (scalar @info) - 1;  $i >= 0; --$i){
 	$info[$i] ||= 1;
@@ -685,7 +685,7 @@ sub addstrings
  if ($a->{'Forward'})
   {
    my $var = $^O eq 'MacOS' ? 'extern' : 'static';
-   print $fh "$var encpage_t $name\[",scalar(@{$a->{'Entries'}}),"];\n";
+   print $fh "$var const encpage_t $name\[",scalar(@{$a->{'Entries'}}),"];\n";
   }
  $a->{'DoneStrings'} = 1;
  foreach my $b (@{$a->{'Entries'}})
@@ -773,7 +773,8 @@ sub outtable
    my ($s,$e,$out,$t,$end,$l) = @$b;
    outtable($fh,$t,$bigname) unless $t->{'Done'};
   }
- print $fh "\nstatic encpage_t $name\[",scalar(@{$a->{'Entries'}}),"] = {\n";
+ print $fh "\nstatic const encpage_t $name\[",
+   scalar(@{$a->{'Entries'}}), "] = {\n";
  foreach my $b (@{$a->{'Entries'}})
   {
    my ($sc,$ec,$out,$t,$end,$l,$fb) = @$b;
diff --git a/ext/Encode/encengine.c b/ext/Encode/encengine.c
index 4ea0667..6fb65da 100644
--- a/ext/Encode/encengine.c
+++ b/ext/Encode/encengine.c
@@ -92,7 +92,7 @@ we add a flag to re-add the removed byte to the source we could handle
 #include "encode.h"
 
 int
-do_encode(encpage_t * enc, const U8 * src, STRLEN * slen, U8 * dst,
+do_encode(const encpage_t * enc, const U8 * src, STRLEN * slen, U8 * dst,
 	  STRLEN dlen, STRLEN * dout, int approx, const U8 *term, STRLEN tlen)
 {
     const U8 *s = src;
@@ -102,7 +102,7 @@ do_encode(encpage_t * enc, const U8 * src, STRLEN * slen, U8 * dst,
     U8 *dend = d + dlen, *dlast = d;
     int code = 0;
     while (s < send) {
-	encpage_t *e = enc;
+	const encpage_t *e = enc;
 	U8 byte = *s;
 	while (byte > e->max)
 	    e++;