Format
#include <stdio.h> int feof(FILE *stream);
Language Level: ANSI, POSIX, XPG4
feof indicates whether the end-of-file flag is set for the given stream.
The end-of-file flag is set by several functions to indicate the
end of the file. The end-of-file flag is cleared by calling
rewind, fsetpos, fseek, or clearerr for this stream.
Return Value
feof returns a nonzero value if and only if the EOF flag
is set; otherwise, it returns 0.
Example
This example scans the input stream until it reads an
end-of-file character.
#include <stdio.h>
#if (1 == __TOS_OS2__) #define FILENAME "myfile.dat" /* OS/2 file name */ #else #define FILENAME "myfile.dat" /* Windows file name */ #endif
int main(void)
{
char inp char;
FILE *stream;
stream = fopen("FILENAME", "r");
/* scan an input stream until an end-of-file character is read. */
while (0 == feof(stream)) {
fscanf(stream, "%c", &inp_char);
printf("<x%x>", inp_char);
}
fclose(stream);
return 0;
/*********************************************************
If FILENAME contains : abc defgh
The output should be:
<x61> <x62> <x63> <x64> <x65> <x66> <x67> <x68> *********************************************************/ }
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clearerr -- Reset Error Indicators
ferror -- Test for Read/Write Errors
fseek -- Reposition File Position
fsetpos -- Set File Position
perror -- Print Error Message
rewind -- Adjust Current File Position
<stdio.h>