From fc662341e6f85da78ada0e443f6116b978f79f22 Mon Sep 17 00:00:00 2001
From: Igor Pavlov <87184205+ip7z@users.noreply.github.com>
Date: Tue, 14 May 2024 00:00:00 +0000
Subject: 24.05

---
 C/Ppmd7Enc.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

(limited to 'C/Ppmd7Enc.c')

diff --git a/C/Ppmd7Enc.c b/C/Ppmd7Enc.c
index 41106ba..49cbbe6 100644
--- a/C/Ppmd7Enc.c
+++ b/C/Ppmd7Enc.c
@@ -1,5 +1,5 @@
 /* Ppmd7Enc.c -- Ppmd7z (PPMdH with 7z Range Coder) Encoder
-2023-04-02 : Igor Pavlov : Public domain
+2023-09-07 : Igor Pavlov : Public domain
 This code is based on:
   PPMd var.H (2001): Dmitry Shkarin : Public domain */
 
@@ -82,7 +82,7 @@ void Ppmd7z_Flush_RangeEnc(CPpmd7 *p)
 
 void Ppmd7_UpdateModel(CPpmd7 *p);
 
-#define MASK(sym) ((unsigned char *)charMask)[sym]
+#define MASK(sym)  ((Byte *)charMask)[sym]
 
 Z7_FORCE_INLINE
 static
@@ -139,8 +139,8 @@ void Ppmd7z_EncodeSymbol(CPpmd7 *p, int symbol)
       MASK(s->Symbol) = 0;
       do
       {
-        unsigned sym0 = s2[0].Symbol;
-        unsigned sym1 = s2[1].Symbol;
+        const unsigned sym0 = s2[0].Symbol;
+        const unsigned sym1 = s2[1].Symbol;
         s2 += 2;
         MASK(sym0) = 0;
         MASK(sym1) = 0;
@@ -265,16 +265,15 @@ void Ppmd7z_EncodeSymbol(CPpmd7 *p, int symbol)
         if (num2 != 0)
         {
           s += i;
-          for (;;)
+          do
           {
-            unsigned sym0 = s[0].Symbol;
-            unsigned sym1 = s[1].Symbol;
+            const unsigned sym0 = s[0].Symbol;
+            const unsigned sym1 = s[1].Symbol;
             s += 2;
             sum += (s[-2].Freq & (unsigned)(MASK(sym0)));
             sum += (s[-1].Freq & (unsigned)(MASK(sym1)));
-            if (--num2 == 0)
-              break;
           }
+          while (--num2);
         }
 
         
-- 
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