[英]C++ linker command failed with exit code 1
MaxSumOfSubArray.cpp
来源:
#include <iostream>
namespace MaxSumOfSubArray {
void run() {
std::cout << "hey hey";
}
}
main.cpp
来源:
#include "MaxSumOfSubArray.cpp"
int main(int argc, const char * argv[])
{
MaxSumOfSubArray::run();
return 0;
}
但是我得到了错误:
duplicate symbol __ZN16MaxSumOfSubArray3runEv in:
/Users/li.tonghui/Library/Developer/Xcode/DerivedData/CppChallenges-eobfuxlkqjfgebendxkoqbsvsbmr/Build/Intermediates/CppChallenges.build/Debug/CppChallenges.build/Objects-normal/x86_64/main.o
/Users/li.tonghui/Library/Developer/Xcode/DerivedData/CppChallenges-eobfuxlkqjfgebendxkoqbsvsbmr/Build/Intermediates/CppChallenges.build/Debug/CppChallenges.build/Objects-normal/x86_64/MaxSumOfSubArray.o
ld: 1 duplicate symbol for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
为什么会出现此错误以及如何解决?
看起来您在main.cpp中包含MaxSumOfSubArray.cpp并尝试对其进行编译。 做一个或另一个,而不是两个...
提示:通常,您不会在另一个.cpp中包含.cpp(您包括.h文件)
您正在尝试在命令行中进行编译
clang .... main.cpp MaxSumOfSubArray.cpp
这是错误的,因为您已经在main.cpp中包含MaxSumOfSubArray.cpp
,因此无需再次指定它。
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