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Contents

Index

• Getting Started

• User's Guide

• Desktop Tools and Development Environment

• Data Import and Export

• File Opening, Loading, and Saving

• Spreadsheets

• Low-Level File I/O

• Scientific Data

• Audio and Video

• XML Documents

• Memory Mapping

• File Name Construction

• File Compression

• Internet File Access

• Mathematics

• Data Analysis

• Programming and Data Types

• Object-Oriented Programming

• 3-D Visualization

• GUI Development

• External Interfaces

• Release Notes

ftell - Position in open file

Syntax

position = ftell(fileID)

Description

position = ftell(fileID) returns the current position in the specified file. position is a zero-based integer that indicates the number of bytes from the beginning of the file. If the query is unsuccessful, position is -1. fileID is an integer file identifier obtained from fopen.

See Also

fclose | feof | ferror | fopen | fprintf | fread | frewind | fscanf | fseek | fwrite

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