Re: [Discuss-gnuradio] Using "rb" vs. "r" to open gnuradio data files

[Don Ward]

Rob Walker wrote:
> I was attempting to use Chuck Swiger's utility at
> http://www.swigerco.com/gnuradio/raw2num_f.c to read a gnuradio file
> created by audio_to_file.py but kept getting "Input reached EOF" well
> before the entire file had been read.  I am not a C programmer, but
> while debugging I noticed that he had used "r" in his fopen command
> rather than the "rb" used by gr_file_source.cc so I made that change and
> now the utility works fine.  I also noticed an old post from ematlis
> (http://lists.gnu.org/archive/html/discuss-gnuradio/2007-05/msg00341.htm
> l) mentioning a similar utility he'd developed and noticed it uses "r"
> rather than "rb" also.  Shouldn't "rb" be used rather than "r" to open
> gnuradio data files?
>
> By the way, I am using MinGW/MSYS with GCC 3.4.5 if that matters.

Windows (MinGW/MSYS and Cygwin) needs to know when to convert the CR-LF line 
separators stored in a text file to LF on reading (text files) and when to 
leave them alone (binary data).  For portability, I think that all files 
that are not text files should be opened with "rb".

-- Don W.