[ace-users] ACE_TCHAR use in ACE_OS

Douglas C. Schmidt schmidt at dre.vanderbilt.edu
Wed Jul 18 12:44:43 CDT 2007

Hi Stew,

>I noticed that certain functions in the ACE_OS namespace mix char, wchar_t,
>and ACE_TCHAR. 


> For example, there are 2 versions of fopen:
>FILE* fopen (const char *filename, const ACE_TCHAR *mode);
>FILE* fopen (const wchar_t *filename, const ACE_TCHAR *mode);
>Why is this?  Why isn't there a single fopen function defined as:
>FILE* fopen (const ACE_TCHAR *filename, const ACE_TCHAR *mode);

Because some early sponsors of ACE wide character support wanted to be
able to have "mixed" wide/narrow strings in the same program!

Take care,

Dr. Douglas C. Schmidt                       Professor and Associate Chair
Electrical Engineering and Computer Science  TEL: (615) 343-8197
Vanderbilt University                        WEB: www.dre.vanderbilt.edu/~schmidt
Nashville, TN 37203                          NET: d.schmidt at vanderbilt.edu

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