在C++中，我们经常需要检查文件是否存在。在旧版本的C++中，可以使用以下代码来检查文件是否存在：文
static const WORD MODEL_OUT = std::ios::out; // 0x02, for writing, the file does not exist, to create, if the file already exists, clear the original content (ofstream default Open) static const WORD MODEL_ATE = std::ios::ate; // 0x04, when the file is opened, the pointer in...
(b) The only way I know in C++ to check if a file exists is to open the file for reading [only] and check whether it succeeds. My guess is that if it doesn't succeed (there is no such file), then you re-open the stream for writing and continue using it (if I understood your...
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(filename.c_str(),ios::in);// open the fileif(inFile.fail())// check for successful open{ cout << filename <<" was not successfully opened\n Please check that the file currently exists."<< endl; exit(1); } cout <<"\nThe file has been successfully opened for reading.\n";...