The **`fgetpos` function** obtains the current position of stream and writes that in `pos`.
```C
int fgetpos(FILE *stream, fpos_t *pos) 
```

# Parameters
This function takes the following two arguments:

1. **`stream`** - the pointer to a `FILE` object that identifies the stream
2. **`pos`** - this is a pointer to `fpos_t`. 

# Return value
The function returns zero in case of success and non-zero value in case of an error.

# Example
The following example shows the use of the ```fgetpos``` function. The program creates a file named `file.txt`. We obtain the initial position of the file using the `fgetpos` function and write "This is old text" there. The `fsetpos` function resets the write pointer and places it at the start of the file. The new text written this overrides the old text:

#include <stdio.h>

int main () {
  FILE *thisFile;
  fpos_t position;
  int c;
  int n = 0;
  // char str[1000];

  thisFile = fopen("sampleFile.txt","w+");
  fgetpos(thisFile, &position);
  fputs("This is old text", thisFile);
  
  fsetpos(thisFile, &position);
  fputs("This is new text that will override old text", thisFile);
  fclose(thisFile);  
  
  return(0);
}

The string "This is old text" will be replaced by "This is new text that will override old text" in the file `sampleFile.txt`.

What is fgetpos in C ?

The fgetpos function retrieves the current position of a file stream and stores it in pos. Returns 0 on success.