getchar -- Read a Character from the Standard Input Stream


SYNOPSIS
#include <stdio.h>
int getchar(void);
DESCRIPTION
getchar
reads a character from the stream stdin
.
RETURN VALUE
getchar
returns the next input character or EOF
if no character
can be read.
IMPLEMENTATION
getchar
is a macro that expands into getc(stdin)
.
EXAMPLE
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
main()
{
char filename[60];
int words = 0, lines = 0, bytes = 0;
int spacing = 1;
int ch;
puts("Enter the input file name:");
memcpy(filename, "tso:", 4);
gets(filename+4);
if (freopen(filename, "r", stdin) == 0){
puts("File could not be opened.");
exit(EXIT_FAILURE);
}
/* Read the file and count bytes, lines, and words. */
for(;;){
ch = getchar();
if (ch == EOF) break;
++bytes;
if (ch == 'n') ++lines;
/* If the input character is a nonspace character */
/* after a space character, start a new word. */
if (isspace(ch)) spacing = 1;
else if(spacing){
spacing = 0;
++words;
}
}
printf("The input file contains %d bytesn", bytes);
printf("%d lines and %d words.n", lines, words);
exit(EXIT_SUCCESS);
}
RELATED FUNCTIONS
getc
SEE ALSO