1//===-- Implementation of getc --------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/stdio/getc.h"
10#include "src/__support/File/file.h"
11
12#include "src/errno/libc_errno.h"
13#include <stdio.h>
14
15namespace LIBC_NAMESPACE {
16
17LLVM_LIBC_FUNCTION(int, getc, (::FILE * stream)) {
18 unsigned char c;
19 auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->read(data: &c, len: 1);
20 size_t r = result.value;
21 if (result.has_error())
22 libc_errno = result.error;
23
24 if (r != 1)
25 return EOF;
26 return c;
27}
28
29} // namespace LIBC_NAMESPACE
30

source code of libc/src/stdio/generic/getc.cpp