What are the different file open modes in C programming?
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What are the different file open modes in C programming?
In C programming, file open modes determine how a file is accessed. Common modes include 'r' for reading, 'w' for writing, 'a' for appending, and 'rb' for reading in binary.
Can you explain what 'r+' mode does?
'r+' mode opens a file for both reading and writing. The file must exist; if it doesn't, the open call will fail.
What happens if I try to open a file in 'w' mode that doesn't exist?
If you open a file in 'w' mode and it doesn't exist, C will create a new file. If it does exist, the file will be truncated to zero length.
Are there any modes for opening files in binary?
Yes, you can use modes like 'rb' for reading binary files and 'wb' for writing binary files. These modes treat the file as a binary stream.
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