I have a development Mac running 10.5. This causes my apps to not work in 10.4 (Google "_nsdefaultrunloopmode tiger"). I read the solution is to install the 10.4 SDK and compile against that. I have it installed (at least I have /Developer/SDKs/MacOSX10.4u.sdk) Now I can't find a way to actually use that - I'm doing two things: 1) Comp...
Hello, I have a Theora video deocder library and application compiled using VS-2008 on windows(Intel x86 architecture). I use this setup to decode theora bit streams(*.ogg files). The source code for this decoder library is used from FFMPEG v0.5 source package with some modifications to make it compile on windows-VS-2008 combination. ...
How can I do this: *(int *)CMSG_DATA(hdr) = fd2pass; Without GCC raising this: error: dereferencing type-punned pointer will break strict-aliasing rules In a way compatible with these options: -Wall -Werror -pedantic ...
I have a template class with a static function (see Connect function below). This template class is part of a 3rd Party lib (call it LibA). My code uses this lib and includes the header below since I need to use the template class. When I compile my lib without inline functions (-fno-default-inline with gcc) I get no problems. When I...
I try to patch gcc so that after a fdivd the destination register is stored to the stack,i.e: fdivd %f0, %f2, %f4; => becomes fdivd %f0, %f2, %f4; std %f4, [%fp+...] I generate the rtl for divdf3 using a (emit_insn,DONE) sequence in a define_expand pattern (see below). In the assembler output phase I use a define_insn and write out "f...
I am using the POSIX call nftw() for traversing a directory structure. The directory structure is flat - only 4 files and no subdirectories. However when I call nftw() a lot of times on this flat directory then I get an error message after a while: "too many open file handles". It turned out that this happens when the flag FTW_CHDIR ...
Hi guys, Provided the code below: template<class _ResClass, class _ResLoader=DefaultLoader> class Resource : public BaseResource { private: _ResClass data_; public: explicit Resource(const std::string& path) : data_( _ResLoader::load< _ResClass >( path )) { }; }; Why would it fail but this one will work?: template<c...
I've written a shared library which is partly used by a Windows application written in Visual Studio 6 (pure C). The library works flawlessly under Linux, but under Windows something's broken somewhere (it uses some #ifdef WIN32 which might enclose something errornous). But adding the library DLL as "additional DLLs" to the project in ...
Hi all, I was wondering if I can get a list of gcc option that can cause gdb to behave strange. Of course, we all know that using optimization options (-O3 for instance) causes weird behaviour in gdb, but what are the other options that can have such impact? (I'm currently trying to run an mpeg2 decoder in gdb and I get weird behaviou...
A library can be used in an application in two ways: Statically-linked Dynamically-linked But how to do that using both Visual Studio (windows) & GCC? I know libraries are distributed only in these 4 ways: Source header-only libraries *.lib files for windows. *.a for linux *.dll (windows) & *.so (linux). Source distribution is j...
I'm trying to create the following data structure in Qt 4.5 in C++: QMap<int, QMap<QString, QVector<QPointF> > > animation; However, the inclusion of this line in my code results in the following error: cc1plus: warnings being treated as errors In file included from XXX/XXX/XXX/MainWindow.qt.C.tmp.C:113: /usr/lib/qt4/include/QtCore/q...
I'm just starting to learn assembly in my computer science class, and I have an assignment to round a floating-point value using a specified rounding mode. I've tried to implement this using fstcw, fldcw, and frndint. I modify the rounding control bits, round the number, and then restore the previous control bits (a requirement of the as...
if a function calls itself while defining variables at the same time would it result in stack overflow? Is there any option in gcc to reuse the same stack. void funcnew(void) { int a=10; int b=20; funcnew(); return ; } can a function reuse the stack-frame which it used earlier? What is the option in gcc to reuse the same...
I am compiling 2 C++ projects in a buildbot, on each commit. Both are around 1000 files, one is 100 kloc, the other 170 kloc. Compilation times are very different from gcc (4.4) to Visual C++ (2008). Visual C++ compilations for one project take in the 20 minutes. They cannot take advantage of the multiple cores because a project depend ...
I want to create a core dump whenever my process crashes. Currently I am following this approach: Build a special "debug" version of the program using "-g" of gcc/g++. Execute "ulimit -c unlimited" Now we get the core dump whenever the program crashes. But I want to minimize the number of steps so that: Core dump should always get ...
I have a collection of dynamic libraries that I want to link to in /usr/local/lib, how can I do this using gcc without setting my LD_LIBRARY_PATH (i have heard it is bad to do this fora number of reasons). I have spent an hour looking at this on the internet, and fiddling with command line arguments, the only way I got it to work was usi...
I'm building a very small C/C++ project using eclipse and i'm getting the following during build: make all Building file: ../Metric.cpp Invoking: GCC C++ Compiler g++ -I/usr/include/glib-2.0 -I/usr/include/libgtop-2.0 -I/usr/lib/glib-2.0/include -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"Metric.d" -MT"Metric.d" -o"Metric.o" "../M...
I'm considering using Go as a low-level, performant language alternative to C/Objective-C to implement a library for an iPhone App. Could either of the Go compilers generate a library that could be linked into a native iPhone app with the Go runtime, etc.? Is there an ARM port for Go or does gccgo/gcc support this? I imagine that since g...
A software I am working on ships with NETLIB BLAS/LAPACK embedded into its sources using all-lowercase symbol names but now while porting the application to windows I discovered that Intel MKL and several other BLAS/LAPACK implementations for this platform use all-uppercase symbol names. Is there a way to tell the gnu compiler/linker to ...
I'm getting the following error when trying to compile my program: calling fdopen: Bad file descriptor I've read this might be a problem related to including a precompiled header in one of my header files. The file which is causing the error includes the stdio.h header in it so I have access to the FILE type. If I remove this, the er...