Reading too few bytes
Here's a small test program:
#include fcntl.h
#include cstdlib
#include iostream
using namespace std;
int main() {
int fd = ::open( ESLF, O_RDONLY );
if ( fd == -1 ) {
cerr could not open ESLF file endl;
::exit( 1 );
}
char buf[ 64 ];
ssize_t bytesRead = ::read( fd, buf, sizeof( buf ) );
cout read bytesRead bytes endl;
::close( fd );
}
Here's the contents of a small biinary file ESLF (printed in hex bytes):
54 39 CA 1A 44
When I compile the program as:
g++ -o test test.cpp
and run it, it prints read 5 bytes as one would expect. When I compile
the program as:
g++ -mno-cygwin -o test test.cpp
and run it, it prints read 3 bytes. Why? How do I teg it to read all
5 bytes?
- Paul
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Re: fopen with UTF-8 chars in filenames
On Thu, 16 Mar 2006, Christopher Faylor wrote: I don't know if doing what the OP wants is possible on Cygwin ... I solved my problem by using _wfopen() and converting the path to UTF-16 first. Unless there's a way to work directly with UTF-8, I'll stick with that. - Paul -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: fopen with UTF-8 chars in filenames
On Fri, 17 Mar 2006, Christopher Faylor wrote: Cygwin doesn't provide _wfopen. 1. I install Cygwin. 2. It's in stdio.h that gets installed as part of the Cygwin install. Therefore, as far as I'm concerned, it's in Cygwin. So, if you are using _wfopen you stopped using Cygwin, then, too, possibly using -mno-cygwin. As it happens, I am suppliying -mno-cygwin. I am trying to do what this person did INSERT URL HERE and I get an unreferenced error Then why does it work for me? - Paul -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
fopen with UTF-8 chars in filenames
Is this known to work (or not work)? Apparently, it doesn't. FYI: I'm writing JNI code. The strings passed from Java to C are UTF-8. A string containing a non-ASCII character, e.g., an 'e' with an accent, works fine with fopen() under Mac OS X. The same JNI code under Cygwin fails. - Paul -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
stat(2) of a directory
Under *nix, I can use stat(2) of a directory to know when its contents have changed (file added or deleted from it). Under cygwin, this doesn't work because a directory's modification time doesn't change when its contents change. Any recommendations as to how to monitor a directory to know when its contents change under cygwin? - Paul -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Missing INTERNET_CONNECTED_INFO ?
Why isn't this structure declared in wininet.h like this: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/internet_connected_info.asp says it is? Same goes for INTERNET_STATE_CONNECTED, INTERNET_STATE_DISCONNECTED, etc. - Paul -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
libtiff, libjpeg, cygwin compile problems
I'm trying to compile libtiff (using libjpeg) under cygwin and I'm getting all kinds of compile-time errors. FYI: I need to compile with the -mno-cygwin flag to gcc since my software as a whole can't depend on the end-user having cygwin installed. libjpeg (version 6b) compiles and works just fine by itself. However, if I try to compile libtiff (version 3.7.4) using my compiled libjpeg, I get lots of errors (a sample of which are below). I did find some information about a cygwin patch: http://www.cygwin.com/ml/cygwin-announce/2000/msg00050.html for libjpeg and applied the patch, but it didn't help. How can I get libtiff to compile with libjpeg? - Paul libjpeg/include/jmorecfg.h:195: error: conflicting types for 'INT32' usr/lib/gcc/i686-pc-mingw32/3.4.4/../../../../include/w32api/basetsd.h:52: error: previous declaration of 'INT32' was here In file included from tif_jpeg.c:75: libjpeg/include/jpeglib.h:99: error: parse error before boolean libjpeg/include/jpeglib.h:541: error: parse error before '*' token libjpeg/include/jpeglib.h:640: error: conflicting types for 'master' libjpeg/include/jpeglib.h:416: error: previous declaration of 'master' was here libjpeg/include/jpeglib.h:641: warning: 'main' is usually a function libjpeg/include/jpeglib.h:641: error: conflicting types for 'main' libjpeg/include/jpeglib.h:417: error: previous declaration of 'main' was here libjpeg/include/jpeglib.h:642: error: conflicting types for 'codec' libjpeg/include/jpeglib.h:419: error: previous declaration of 'codec' was here libjpeg/include/jpeglib.h:645: error: conflicting types for 'marker' libjpeg/include/jpeglib.h:420: error: previous declaration of 'marker' was here libjpeg/include/jpeglib.h:647: error: conflicting types for 'cconvert' libjpeg/include/jpeglib.h:421: error: previous declaration of 'cconvert' was here libjpeg/include/jpeglib.h:649: error: parse error before '}' token tif_jpeg.c:116: error: field `c' has incomplete type tif_jpeg.c:117: error: field `d' has incomplete type tif_jpeg.c:118: error: field `comm' has incomplete type tif_jpeg.c:128: error: field `dest' has incomplete type tif_jpeg.c:129: error: field `src' has incomplete type tif_jpeg.c: In function `TIFFjpeg_error_exit': tif_jpeg.c:215: error: dereferencing pointer to incomplete type tif_jpeg.c: In function `TIFFjpeg_output_message': tif_jpeg.c:231: error: dereferencing pointer to incomplete type tif_jpeg.c: In function `TIFFjpeg_create_compress': tif_jpeg.c:252: error: invalid application of `sizeof' to incomplete type `jpeg_compress_struct' tif_jpeg.c: In function `TIFFjpeg_create_decompress': tif_jpeg.c:263: error: invalid application of `sizeof' to incomplete type `jpeg_decompress_struct' tif_jpeg.c: At top level: tif_jpeg.c:395: error: `std_empty_output_buffer' declared as function returning a function tif_jpeg.c:446: error: `tables_empty_output_buffer' declared as function returning a function tif_jpeg.c: In function `tables_empty_output_buffer': tif_jpeg.c:454: error: dereferencing pointer to incomplete type tif_jpeg.c:454: error: dereferencing pointer to incomplete type -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
windres VERSIONINFO not working
I'm trying to use gcc and windres to build a small native
Windows application. When compiling, I'm using -mno-cygwin;
when linking, I'm using -mwindows. To generate a .res file from
a .rc file, I'm using:
windres -O coff $ $@
in my makefile. Everything seems to work and the generated
executable also shows its icon as specified in the .rc file, but
there's no version information tab in Windows explorer. My .rc
file is below.
Any ideas why this doesn't work and how to make it work?
- Paul
#include windows.h
My_Icon ICON MyIcon.ico
My_Version VERSIONINFO
FILEVERSION 1,0,5,0
PRODUCTVERSION 1,0,5,0
FILEFLAGSMASK 0
FILEFLAGS 0
FILEOS VOS__WINDOWS32
FILETYPEVFT_APP
FILESUBTYPE 0
{
BLOCK StringFileInfo
{
BLOCK 0x040904E4 // U.S. English + Windows
{
VALUE CompanyName, My Company, Inc.
VALUE FileDescription, Best application ever
VALUE FileVersion, 1.0.5
VALUE InternalName, WIdget
VALUE LegalCopyright, Copyright \251 2005 Me.
VALUE OriginalFilename, Widget.exe
VALUE ProductName, Widget
VALUE ProductVersion, 1.0.5
}
}
BLOCK VarFileInfo
{
VALUE Translation, 0x0409,0
}
}
/* vim:set et sw=4 ts=4: */
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Error in GetICMProfile() declaration
In /usr/include/w32api/wingdi.h, GetICMProfile() has its second argument declared as a DWORD. According to: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/icm/icm_5aed.asp it should be declared as an LPDWORD. Indeed, in order to call this function correctly, I current have to do something like: HDC dc = GetDC( NULL ); char path[ MAX_PATH ]; DWORD len = sizeof path; GetICMProfile( dc, (DWORD)len, path ); So this really looks like a bug in the declaration. - Paul -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
