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I am writing test cases right now and I created some test files which I try to read. The absolute path is:
/home/user/code/Project/source/Project/components/Project/test/file.dat
but testing with an absolute path is bad for obvious reasons. So I try to convert the absolute path into a relative one and I don't know why it doesn't work. I created a file with the relative path
findme.dat
and I found it in
/home/user/code/Project/build/source/Project/components/Project/test/findme.dat
so I created the relative path
/../../../../../../source/Project/components/Project/test/file.dat
but the file is not open and not associated with the is object,
std::ifstream is (path);, and the is.is_open() function returns fulse.
Can you help me?
377
Opening a File with Relative Path In the relative path, it will look for a file into the directory where this script is running. # Opening the file with relative path try: fp = open("sample. txt", "r") print(fp. read()) fp.
A relative path is a way to specify the location of a directory relative to another directory. For example, suppose your documents are in C:\Sample\Documents and your index is in C:\Sample\Index. The absolute path for the documents would be C:\Sample\Documents.
If it's a Windows system, the $ represents a hidden or administrative share. This is typically setup either by default ("C$" is the standard share for the C drive), or to obscure the shared folder so that it is not programmatically found or easy to access by unwanted users.
To extract filename from the file, we use “GetFileName()” method of “Path” class. This method is used to get the file name and extension of the specified path string. The returned value is null if the file path is null. Syntax: public static string GetFileName (string path);
What you are using is not at all a relative path. Sure you are using the relative path syntax but not the actual meaning of what it is.
/../../../../../../source/Project/components/Project/test/file.dat
This path starts with a / which means root then finds it parent which return root again since root has no parent and goes on... The simplified version of this is:
/source/Project/components/Project/test/file.dat
So it will look for folder source in root which of-course doesn't exist.
What you should do is something like this (assuming your code is in project folder):
./test/file.dat
or if it is in some other folder within Project folder you can do something like this:
../test/file.dat
../ take you to the parent of your current code directory which under this case's assumption is Project.
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