1 | //===-- Implementation of fgetc -------------------------------------------===// |
---|---|
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/fgetc.h" |
10 | #include "src/__support/File/file.h" |
11 | |
12 | #include "hdr/types/FILE.h" |
13 | #include "src/__support/libc_errno.h" |
14 | #include "src/__support/macros/config.h" |
15 | #include <stddef.h> |
16 | |
17 | namespace LIBC_NAMESPACE_DECL { |
18 | |
19 | LLVM_LIBC_FUNCTION(int, fgetc, (::FILE * stream)) { |
20 | unsigned char c; |
21 | auto result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->read(&c, 1); |
22 | size_t r = result.value; |
23 | if (result.has_error()) |
24 | libc_errno = result.error; |
25 | |
26 | if (r != 1) |
27 | return EOF; |
28 | return c; |
29 | } |
30 | |
31 | } // namespace LIBC_NAMESPACE_DECL |
32 |