srand(time(0))如果包含ctime就会在using ::clock出错

60    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::tm' has not been declared
62    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::clock' has not been declared
63    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::difftime' has not been declared
64    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::mktime' has not been declared
65    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::time' has not been declared
66    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::asctime' has not been declared
67    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::ctime' has not been declared
68    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::gmtime' has not been declared
69    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::localtime' has not been declared
70    11    C:\Program Files (x86)\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ctime    [Error] '::strftime' has not been declared
6    39    C:\1.cpp    [Error] 'nullptr' was not declared in this scope
6    46    C:\1.cpp    [Error] 'time' was not declared in this scope

dev_c++ 32bit release

重装好多遍都没有用
包含ctime的文件都会编译错误

我用的就是2楼的代码
没有time.h文件啊