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C stdio ftell() Function

❮ C stdio Library


Example

Show the current position in a file:

FILE *fptr;
fptr = fopen("filename.txt", "a");

int position = ftell(fptr);
printf("%d", position);

fclose(fptr);

Definition and Usage

The ftell() function returns the value of position indicator. This is the position in the file where the next read or write operation will be done.

The ftell() function is defined in the <stdio.h> header file.


Syntax

ftell(FILE * fptr);

Parameter Values

Parameter Description
fptr Required. A file pointer, usually created by the fopen() function.

Technical Details

Returns: An int value representing the current value of the position indicator.

❮ C stdio Library

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