diff options
| author | Michael R Sweet <michael.r.sweet@gmail.com> | 2004-09-21 13:35:40 +0000 |
|---|---|---|
| committer | Michael R Sweet <michael.r.sweet@gmail.com> | 2004-09-21 13:35:40 +0000 |
| commit | fdd10af508c8f8f992a1100a70222e94fb8a491f (patch) | |
| tree | b2ceed815c4e86ac1c84d568541c996bd67ce395 /src/Fl_Input_.cxx | |
| parent | 0980e981484a5077b4f63c9fbd08e9f685ff81e1 (diff) | |
fl_old_shortcut() might read past the end of the shortcut string.
Add comment concerning pointer arithmetic in Fl_Input_::put().
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@3836 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src/Fl_Input_.cxx')
| -rw-r--r-- | src/Fl_Input_.cxx | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/Fl_Input_.cxx b/src/Fl_Input_.cxx index 79dd91b30..6f42e6e8a 100644 --- a/src/Fl_Input_.cxx +++ b/src/Fl_Input_.cxx @@ -1,5 +1,5 @@ // -// "$Id: Fl_Input_.cxx,v 1.21.2.11.2.31 2004/09/09 21:34:46 matthiaswm Exp $" +// "$Id: Fl_Input_.cxx,v 1.21.2.11.2.32 2004/09/21 13:35:39 easysw Exp $" // // Common input widget routines for the Fast Light Tool Kit (FLTK). // @@ -793,6 +793,15 @@ void Fl_Input_::put_in_buffer(int len) { } else { bufsize = len+1; } + // Note: the following code is equivalent to: + // + // if (moveit) value_ = value_ - buffer; + // char* nbuffer = (char*)realloc(buffer, bufsize); + // if (moveit) value_ = value_ + nbuffer; + // buffer = nbuffer; + // + // We just optimized the pointer arithmetic for value_... + // char* nbuffer = (char*)realloc(buffer, bufsize); if (moveit) value_ += (nbuffer-buffer); buffer = nbuffer; @@ -857,5 +866,5 @@ Fl_Input_::~Fl_Input_() { } // -// End of "$Id: Fl_Input_.cxx,v 1.21.2.11.2.31 2004/09/09 21:34:46 matthiaswm Exp $". +// End of "$Id: Fl_Input_.cxx,v 1.21.2.11.2.32 2004/09/21 13:35:39 easysw Exp $". // |