Syntax of fsetpos()

int fsetpos(FILE *stream, const fpos_t *pos)

Parameters

  • stream – This is the pointer to a FILE object that identifies the stream.
  • position – This is the pointer to a fpos_t object containing the desired value of the position indicator.

Return Value

  • If it is successful, it returns zero otherwise returns a nonzero value.

fsetpos() (Set File Position) in C

The fsetpos() function moves the file position indicator of the given file stream to the specified position. When fsetpos() is executed, the end-of-file indicator is reset. fsetpos() function is a part of <cstdio> header file in C Standard Library.

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Syntax of fsetpos()

int fsetpos(FILE *stream, const fpos_t *pos)...

C Program to Illustrate the use of fsetpos()

C // C program to illustrate the use of fsetpos() #include   int main() {     // File pointer     FILE* fp;     // Variable to store file position     fpos_t position;       // Open file in write and read mode     fp = fopen("myfile.txt", "w+");       // Get current file position and store it     fgetpos(fp, &position);       // Write "HelloWorld!" to the file     fputs("HelloWorld!", fp);       // Set file position back to the stored position     fsetpos(fp, &position);       // Write "geeksforgeeks" to the file from the restored     // position     fputs("geeksforgeeks", fp);       // setting file pointer position back to the stored     // position     fsetpos(fp, &position);       // storing data stored in file     char arr[50];     fgets(arr, 14, fp);       // printing output     puts(arr);       // Close the file     fclose(fp);       return (0); }...