getchar.gml

开放源码的编译器open watcom 1.6.0版的源代码

.func getchar getwchar _ugetchar
.funcw getwchar
#include <stdio.h>
int getchar( void );
.ixfunc2 '&StrIo' &func
.if &'length(&wfunc.) ne 0 .do begin
#include <wchar.h>
wint_t getwchar( void );
.ixfunc2 '&StrIo' &wfunc
.ixfunc2 '&Wide' &wfunc
.do end
.if &'length(&ufunc.) ne 0 .do begin
int _ugetchar( void );
.ixfunc2 '&StrIo' &ufunc
.do end
.funcend
.desc begin
The &func function is equivalent to
.kw getc
with the argument
.kw stdin.
.if &'length(&wfunc.) ne 0 .do begin
.np
The &wfunc function is similar to &func except that it is equivalent
to
.kw getwc
with the argument
.kw stdin.
.do end
.if &'length(&ufunc.) ne 0 .do begin
.np
The &ufunc Unicode function is similar to &func except that it is
equivalent to
.kw _ugetc
with the argument
.kw stdin.
.do end
.desc end
.return begin
The &func function returns the next character from the input stream
pointed to by
.kw stdin.
If the stream is at end-of-file, the end-of-file indicator is set and
&func returns
.kw EOF.
If a read error occurs, the error indicator is set and
&func returns
.kw EOF.
.if &'length(&wfunc.) ne 0 .do begin
.np
The &wfunc function returns the next wide character from the input
stream pointed to by
.kw stdin.
If the stream is at end-of-file, the end-of-file indicator is set and
&wfunc returns
.kw WEOF.
If a read error occurs, the error indicator is set and &wfunc returns
.kw WEOF.
If an encoding error occurs,
.kw errno
is set to
.kw EILSEQ
and &wfunc returns
.kw WEOF.
.do end
.if &'length(&ufunc.) ne 0 .do begin
.np
The &ufunc function is identical in behaviour except that it returns a
Unicode character.
.do end
.np
.im errnoref
.return end
.see begin
.seelist &function. fgetc fgetchar fgets fopen getc getchar gets ungetc
.see end
.exmp begin
#include <stdio.h>

void main()
  {
    FILE *fp;
    int c;
.exmp break
    fp = freopen( "file", "r", stdin );
    while( (c = getchar()) != EOF )
      putchar(c);
    fclose( fp );
  }
.exmp end
.class ANSI
.system