The symlink to the 4.8.2 directory is nothing to worry about, it’s normal for the libstdc++ headers on Red Hat Enterprise Linux (and therefore CentOS) to be arranged like that. gcc –version will tell you the version of the gcc executable in your path. rpm -q libstdc++-devel will tell you the version of the package … Read more
Neither <iostream> nor <iostream.h> are standard C header files. Your code is meant to be C++, where <iostream> is a valid header. Use a C++ compiler such as clang++ or g++ (and a .cpp file extension) for C++ code. Alternatively, this program uses mostly constructs that are available in C anyway. It’s easy enough to … Read more
I recently downloaded MinGW-w64 from Sourceforge onto my external hard drive, where all the files reside in: E:\mingw-w64\x86_64-4.9.2-posix-seh-rt_v3-rev1\mingw64\bin When I try compiling my first “Hello World” program using gcc on Windows 8.1, I get a cc1.exe System Error, that tells me The program can’t start because libwinpthread-1.dll is missing. Try reinstalling the program to fix … Read more
all,I write a code like this in my mac os x 10.8,and when I use “gcc use_new.cpp -o use_new ” to compile it,but it throws wrong message like this: and when I use “g++ use_new.cpp -o use_new” is OK,who can help me!? thank you!
Explanation The error message told us, that the build-time dependency (in this case it is cc1) was not found, so all we need — install the appropriate package to the system (using package manager // from sources // another way) What is cc1: cc1 is the internal command which takes preprocessed C-language files and converts them to assembly. … Read more
You have two problems with your gcc command-line. First, you’re specifying the -S flag, which causes gcc to emit assembly code, rather than object code. Second, you’re missing the -c flag, which tells gcc to compile the file to an object file, but not link it. If you just remove -S and change nothing else, … Read more
Error 127 means one of two things: file not found: the path you’re using is incorrect. double check that the program is actually in your $PATH, or in this case, the relative path is correct — remember that the current working directory for a random terminal might not be the same for the IDE you’re … Read more
-Wall doesn’t include many options. -Wconversion is one of them and warns about the behavior you’re interested in. See http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
Because of how you’ve ordered your includes, the compiler sees void some_func(my_structure *x); before it sees typedef struct abcd { int a; } my_structure;. Let’s walk this through. Assuming my_struct.h is processed first, we get the following sequence of events: UTILSH is defined MAINH is defined Because UTILSH is already defined, we don’t process my_struct.h … Read more
When I deploy Apache Mesos on Ubuntu12.04, I follow the official document, in step “make -j 8” I’m getting this error in the console: what should I do?