C stdio fopen() Function
Example
Create a file:
FILE *fptr;
// Create a file
fptr = fopen("filename.txt", "w");
// Close the file
fclose(fptr);
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Definition and Usage
The fopen() function opens a file and returns a special FILE pointer which is used in other functions that read and write into files.
The fopen() function is defined in the <stdio.h> header file.
Syntax
fopen(const char * filename, const char * mode);Parameter Values
| Parameter | Description |
|---|---|
| filename | Required. A string containing the path to the file. |
| mode |
Required. A string describing how the file will be used. It can be one of the following
r+b.
|
Technical Details
| Returns: | A FILE pointer which can be used by other file
handling functions. |
|---|