win7里有一个功能是基于UNIX的应用程序子系统 安装之后重启就有一个subunix,和linux差不多,这样就可以把一些不确定的玄学代码放在unix下测试再提交。 源码``` #include #include using namespace std; int main(){ // __int128 a; //cout<<a<<endl; __int64 a=4;
return 0;
}``` devc编译: C:\Users\adm\Desktop\bianchengreview\review16.cpp In function 'int main()': 7 10 C:\Users\adm\Desktop\bianchengreview\review16.cpp [Warning] unused variable 'a' [-Wunused-variable]
unix g++:
% g++ review16.cpp -o review16.exe -lm -Wall
review16.cpp: In function int main()': review16.cpp:4: error:
__int64' undeclared (first use this function)
review16.cpp:4: error: (Each undeclared identifier is reported only once for
each function it appears in.)
review16.cpp:4: error: parse error before =' token review16.cpp:5: error:
a' undeclared (first use this function)