I seem to have narrowed it down to the stdio.h file I/O routines.
I am using ftell(), fread(), fseek(), fopen(), rewind(), fclose().
in the function with the problems, I make use of the above except for possibly
rewind().
I use fseek with 0L,SEEK_END to discover the file size (I need something
platform-independent if possible).
personally, I can't stand using ftell and fseek, because they are 32-bit only.
IF the f-series functions had a STANDARD 32/64-bit (depending on platform,
maximizing its capability on whatever you've got) function for seeking to
beginning, end, and setting a position, this would be most welcome. I would
like to see ftell() and fseek() (the most popular ones, especially in schools)
become one of those functions so I can get file size, maybe even add a filesize
function if it were part of the ANSI C library would be nice. again, I would
want a 64-bit function with 64-bit results where a 64-bit filesystem is
possible.
and if I have to use a #define to switch 32/64-bit I would like to enable it
the SAME WAY on every compiler. *that* ought to be a language standard. mingw
compiler uses __MSVCRT__, linux gcc uses 2 #defines, mingw-w64 uses absence of
NO_OLDNAMES, etc. maybe there should be a single standard #define which sets
the number of bits width for the filesystem. for instance,
#define FILESYSTEM_BIT_WIDTH 64
the compiler could automatically #define FILESYSTEM_BIT_WIDTH 64 on windows
systems and as a user I would just need to #undef it and redefine it (unless a
simple #define would do, I not a total expert on #defines). for arduinos and
other platforms which have no filesystem, it could simply define it as 0. some
embedded systems may be 32-bit or even 16-bit and may still have a filesystem.
but in my program I use the #defines and #ifdefs outlined on my web page
http://JesusnJim.com/code/compiler/mingw.html which enable fsetpos and fgetpos
to become 64-bit. in mingw-w64 this I think means #undef NO_OLDNAMES
this may be affecting something negatively? I don't know. it didn't look like
it affected any of the functions listed up top in stdio.h. I don't know what
all this #define does.
all I wanted was in all my programs to have a 64-bit fsetpos and fgetpos.
enabling old names doesn't look very appealing to me and it doesn't sound like
a good idea, but it's the only way in mingw-w64 2011127.
if I switch out the file functions where a FILE * f is required or filepath (I
ask for one or the other) is required for equivalent <string> functions
containing the file content, the program works perfectly. Interesting?
-------------
Jim Michaels
[email protected]
[email protected]
http://JimsComputerRepairandWebDesign.com
http://JesusnJim.com (my personal site, has software)
---
Computer memory measurements, SSD measurements, microsoft disk size
measurements (note: they will say GB or MB or KB or TB when it is not!):
[KiB] [MiB] [GiB] [TiB]
[2^10B=1,024B=1KiB]
[2^20B=1,048,576B=1MiB]
[2^30B=1,073,741,824B=1GiB]
[2^40B=1,099,511,627,776B=1TiB]
hard disk industry disk size measurements:
[KB] [MB] [GB] [TB]
[10^3B=1,000B=1KB]
[10^6B=1,000,000B=1MB]
[10^9B=1,000,000,000B=1GB]
[10^12B=1,000,000,000,000B=1TB]
>________________________________
> From: JonY <[email protected]>
>To: [email protected]
>Sent: Friday, February 3, 2012 5:01 PM
>Subject: Re: [Mingw-w64-public] problem with compiler?
>
>On 2/4/2012 08:38, Jim Michaels wrote:
>> the auto build, 20111127 release I am having problems with. this gets stuck
>> in a forever loop with lwi==0 and it shouldn't.
>> this is not by any means a complete program. but I am almost sure this is a
>> bug in the compiler (code generator?).
>> what I end up with is it has a forever loop and lwi the for loop index NEVER
>> increments beyond 0.
>> you can zap out all the debug ifdefs if you want. what I get is a zillion
>> of these, start to forever:
>> [FFMWPIL:OFF-word:lwi=0:wi=0:lwi+wi=0:lwsize=7:lineword=1:word=timothy]
>>
>>
>> Jim Michaels
>>
>
>Can you try making a minimalist test? Do show your command line options too.
>
>
>
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