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7 cze 2023 · ftell() in C is used to find out the position of the file pointer in the file with respect to starting of the file. Syntax. The syntax of ftell() is: long ftell(FILE *stream); Parameters. stream: It is the pointer to the file stream. Return Value. It returns a long integer value as the current position in the file. It returns -1 if an error occurs.
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16 lip 2021 · ftell returns the file position indicator for a file stream in bytes or characters, depending on the mode. See the definition, parameters, return value, error handling, and example code for ftell.
Learn how to use the ftell() function to get the current position in a file. See the syntax, parameter, return value and example code of this function.
fseek(f, 0, SEEK_END); // seek to end of file. size = ftell(f); // get current file pointer. fseek(f, 0, SEEK_SET); // seek back to beginning of file. // proceed with allocating memory and reading the file.
24 cze 2020 · Learn how to use ftell () in C language to get the current file position of a stream. See the syntax, parameter, and example of ftell () in C programming.
11 paź 2024 · File handling in C is the process in which we create, open, read, write, and close operations on a file. C language provides different functions such as fopen (), fwrite (), fread (), fseek (), fprintf (), etc. to perform input, output, and many different C file operations in our program.
1 gru 2022 · The ftell and _ftelli64 functions retrieve the current position of the file pointer (if any) associated with stream. The position is expressed as an offset relative to the beginning of the stream. When a file is opened for appending data, the current file position is determined by the last I/O operation, not by where the next write would occur.
