Programmatically Recursively Make Directory

I want my program to create a file located at the path of the command parameter, i.e. program /home/user/directory/that/doesnt/exist/file开发者_JAVA百科. If the directory doesn't exist, fopen will fail to open the file, so the program would have to create the directories. Would I have to program my own loop to detect each slash and mkdir each directory or is there a function to do this automatically?

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Someone coded it for you: mkpath()

Or if you're satisfied using system(), then you can use system("mkdir -p /your/path/here");