how to load a text file in microsoft visual studio 2017

visual studio c++ how to properly use fopen() to open txt file You should either use a 'well-known' path (like APPDATA on windows) or a path relative to your executable (then you can build that path at run time). It's a very dangerous practice to assume that the files you need are in the current working directory - it can change depending on how you start your program. You can set the working directory for the Visual Studio in the project properties, Debugging tab. C++ fstream won't open a text file in windows check the project settings to see where the executable will be generated and copy the file there. this is typically located in your solution directory under a folder called Debug/Release depending on your configuration. You need to keep the file in the directory where the executable is generated by default when using Visual Studio. file exists: don't read a char before the loop orįprintf(stderr,'Cannot open file, error %d ',err)

The problem you'll have even if the file is found is that you lose the first char of your input. Why can't I read a text file in C using Visual Studio? If still no luck, you could maybe try writing a file, and see where it puts it. For example if the file permissions do not allow your program to read it. It is also possible opening the file fails for some other reason (unfortunately C++ error reporting on this is extremely limited). Make sure you did place the file there, and that it is properly named (if using Explorer, be sure to have 'File name extensions' enabled under 'View', so you don't end up making like a by mistake). So assuming you didn't change that setting, this should definitely work. On the right the 'Working Directory' item is most likely set to ' $(ProjectDir)'. The on the left of the new window select 'Debugging'. You can see this if you right click your project in the 'Solution Explorer' -> 'Properties' menu item. vcxproj file as the working directory (where all file operations are relative to).

By default, Visual Studio C++ projects execute with the directory containing the.

How to load a text file in microsoft visual studio 2017