g++

问题 I am porting code that compiled on Ubuntu 14.04 to 16.04 . I have cloned my git repo, installed dependencies and tried the usual make command, soon I hit a g++: internal compiler error: Segmentation fault (program cc1plus) ... yet I am not sure where to start to diagnose and resolve this issue. I will share as much as I can, see if someone can guide me through a resolution. Ubuntu $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.2 LTS Release: 16

问题 There is some linking error here. I looked for that online, yet still I couldn't find the problem. How can I fix it? g++ test.cpp -o test /tmp/ccDfCj4N.o: In function `Interval::Interval()': test.cpp:(.text._ZN8IntervalC2Ev[Interval::Interval()]+0x9): undefined reference to `vtable for Interval' /tmp/ccDfCj4N.o: In function `IntInterval::~IntInterval()': test.cpp:(.text._ZN11IntIntervalD0Ev[IntInterval::~IntInterval()]+0x1d): undefined reference to `Interval::~Interval()' /tmp/ccDfCj4N.o: In

问题 The directive: #ifndef __cplusplus #error C++ is required #elif __cplusplus < 201402L #error C++14 is required #endif The command-line: g++ -Wall -Wextra -std=c++14 -c -o header.o header.hpp My g++ version: g++ (tdm-1) 4.9.2 The error C++14 is required is generated even when I added -std=c++14 , I don't know why. Please tell me how to fix this. 回答1: According to the GCC CPP manual (version 4.9.2 and 5.1.0): __cplusplus This macro is defined when the C++ compiler is in use. You can use _

问题 The directive: #ifndef __cplusplus #error C++ is required #elif __cplusplus < 201402L #error C++14 is required #endif The command-line: g++ -Wall -Wextra -std=c++14 -c -o header.o header.hpp My g++ version: g++ (tdm-1) 4.9.2 The error C++14 is required is generated even when I added -std=c++14 , I don't know why. Please tell me how to fix this. 回答1: According to the GCC CPP manual (version 4.9.2 and 5.1.0): __cplusplus This macro is defined when the C++ compiler is in use. You can use _

问题 The directive: #ifndef __cplusplus #error C++ is required #elif __cplusplus < 201402L #error C++14 is required #endif The command-line: g++ -Wall -Wextra -std=c++14 -c -o header.o header.hpp My g++ version: g++ (tdm-1) 4.9.2 The error C++14 is required is generated even when I added -std=c++14 , I don't know why. Please tell me how to fix this. 回答1: According to the GCC CPP manual (version 4.9.2 and 5.1.0): __cplusplus This macro is defined when the C++ compiler is in use. You can use _

问题 Why does -ansi and -std=c++11 doesn't work together ? (ANSI reverts back to C++98 according to other answers) I am using g++-4.8. Here is the ANSI ratification of C++11 : http://webstore.ansi.org/RecordDetail.aspx?sku=INCITS%2fISO%2fIEC+14882-2012 This leaves me perplex. Thanks! 回答1: RTFM: -ansi In C mode, this is equivalent to -std=c89 . In C++ mode, it is equivalent to -std=c++98 . The flag was added before there were multiple versions of the standard, and the flag still has the same

问题 I've checked similar posts and anyone solve my problem. I's very simple but I'm new with eclipse. I'm trying to make a simple example and I'm having this problem. the make file is just this all: hello.exe clean: rm Hello.o Hello.exe hello.exe: hello.o g++ -g -o hello.exe hello.o hello.o: g++ -c -g main.cpp And I get this error "make: g++: Command not found" Thanks for helping. 回答1: You need to install the development tools from GNU. I assume you're on windows, in which case you have two

问题 I'm trying to link a project of mine to a particular set of custom-compiled libraries placed on the project's base directory [proj_dir]/lib - not on any of the system's /lib, /usr/lib or /usr/local/lib - to avoid conficts with the installed stock versions of those same libraries. I'm able to compile the project by passing the library path with the -L flag, but I get error while loading shared libraries libXXX.so: cannot open shared object file: No such file or directory when I run the

问题 I'm trying to link a project of mine to a particular set of custom-compiled libraries placed on the project's base directory [proj_dir]/lib - not on any of the system's /lib, /usr/lib or /usr/local/lib - to avoid conficts with the installed stock versions of those same libraries. I'm able to compile the project by passing the library path with the -L flag, but I get error while loading shared libraries libXXX.so: cannot open shared object file: No such file or directory when I run the

问题 I have a CMake project I want to compile with g++. The project compiles and runs on Linux. Now I am trying to get it working on Windows. For that reason, I installed MinGW and added it to the PATH and I am using Git Bash. In order to force CMake to use g++ I added these env variables: CC = C:\MinGW\bin\gcc CXX = C:\MinGW\bin\g++ But when I run CMake it does not detect any compilers and tells me: -- The C compiler identification is unkown -- The CXX compiler identification is unkown I created