Some Linux distributions don’t use the gdb style debugging symbols. (IIRC they prefer dwarf2.) In general, gcc and gdb will be in sync as to what kind of debugging symbols they use, and forcing a particular style will just cause problems; unless you know that you need something else, use just -g.
Your desire not to modify t is expressed in const T& t. The ending const specifies that you will not modify any member variable of the class abs belongs to. Since there is no class where this function belongs to, you get an error.
We are having trouble compiling a project using CMake (v2.8.12) under Windows 7 64Bit using Visual Studio 2012. CMake gives us the following errors. We already tried starting Cmake from the Visual Studio Command Line using admin rights. There seems to have been a similar bug in CMake 2.8.11: http://www.cmake.org/Bug/view.php?id=14440
Try the find function. Here is the example from the article I linked:
I’m compiling from the command line, and none of the answers listed here (or elsewhere) worked for me. What does seem to work (so far) is to add the following to .profile or whatever script your terminal uses to start up: (zsh, csh, bash, etc.) You will probably have to change MacOSX10.15.sdk whenever you upgrade … Read more
\r is a carriage return character; it tells your terminal emulator to move the cursor at the start of the line. The cursor is the position where the next characters will be rendered. So, printing a \r allows to override the current line of the terminal emulator. Tom Zych figured why the output of your … Read more
It’s not a question of preference, but of logic. x++ increments the value of variable x after processing the current statement. ++x increments the value of variable x before processing the current statement. So just decide on the logic you write. x += ++i will increment i and add i+1 to x. x += i++ … Read more
Try this:
It isn’t clear from your example what ‘string’ is. If you have: then string is std::string, and sizeof(std::string) gives you the size of the class instance and its data members, not the length of the string. To get that, use:
I am working on worm_sim simulater , ubuntu, gcc, codeblocks IDE traffic_source.h file traffic_source.cpp the value packet_generating_rate is not const but when i try to modify it either directly or using the set function it give me errors although it is used on other files with no problem, any suggestion plz