From 084cc89a410e322a548af42e5fd5d6844e6dbf31 Mon Sep 17 00:00:00 2001
From: "Markus F.X.J. Oberhumer" <markus@oberhumer.com>
Date: Tue, 28 Nov 2000 14:18:13 +0000
Subject: [PATCH] Clarified some comments.

committer: mfx <mfx> 975421093 +0000
---
 src/c_screen.cpp | 2 +-
 src/file.cpp     | 6 +++---
 src/mem.cpp      | 7 ++++---
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/c_screen.cpp b/src/c_screen.cpp
index 5438dfc7..67399945 100644
--- a/src/c_screen.cpp
+++ b/src/c_screen.cpp
@@ -196,7 +196,7 @@ static void print0(FILE *f, const char *ss)
 
     // Note:
     //   We use 2 passes to avoid unnecessary system calls because
-    //   scrollUp() under Win32 is *extremely* slow.
+    //   scrollUp() under Win95/98 is *extremely* slow.
     UNUSED(f);
 
     screen->getCursor(screen,&old_cx,&old_cy);
diff --git a/src/file.cpp b/src/file.cpp
index 2ba9cca4..abc03b90 100644
--- a/src/file.cpp
+++ b/src/file.cpp
@@ -66,7 +66,7 @@ void File::unlink(const char *name)
 **************************************************************************/
 
 FileBase::FileBase() :
-    _fd(-1), _flags(0), _shflags(0), _mode(0), _name(0)
+    _fd(-1), _flags(0), _shflags(0), _mode(0), _name(NULL)
 {
     memset(&st,0,sizeof(st));
 }
@@ -94,7 +94,7 @@ bool FileBase::close()
     _fd = -1;
     _flags = 0;
     _mode = 0;
-    _name = 0;
+    _name = NULL;
     return ok;
 }
 
@@ -290,7 +290,7 @@ void OutputFile::sopen(const char *name, int flags, int shflags, int mode)
     if (!isOpen())
     {
 #if 0
-        // don't throw FileNotFound here - confusing
+        // don't throw FileNotFound here -- this is confusing
         if (errno == ENOENT)
             throw FileNotFoundException(_name,errno);
         else
diff --git a/src/mem.cpp b/src/mem.cpp
index 23edf38e..72f138d9 100644
--- a/src/mem.cpp
+++ b/src/mem.cpp
@@ -70,8 +70,9 @@ unsigned MemBuffer::getSize() const
 void MemBuffer::alloc(unsigned size, unsigned base_offset)
 {
 #if 0
-    // don't automaticlly free a used buffer
     this->free();
+#else
+    // don't automaticlly free a used buffer
 #endif
     assert(alloc_ptr == NULL);
     assert((int)size > 0);
@@ -109,8 +110,8 @@ void MemBuffer::allocForCompression(unsigned uncompressed_size)
 
 void MemBuffer::allocForUncompression(unsigned uncompressed_size)
 {
-    //alloc(uncompressed_size + 512, 0);  // 512 safety bytes
-    alloc(uncompressed_size + 3, 0);  // 3 safety bytes for asm_fast
+    //alloc(uncompressed_size + 3 + 512, 0);  // 512 safety bytes
+    alloc(uncompressed_size + 3, 0);  // 3 bytes for asm_fast decompresion
 }