blob: 4834f4d6a6e79553a9ce9d2dc3258d945abc101f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
//===-- Reader definition for scanf -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/scanf_core/reader.h"
#include <stddef.h>
namespace __llvm_libc {
namespace scanf_core {
char Reader::getc() {
++cur_chars_read;
if (reader_type == ReaderType::String) {
return string_reader->get_char();
} else {
return file_reader->get_char();
}
}
void Reader::ungetc(char c) {
--cur_chars_read;
if (reader_type == ReaderType::String) {
// The string reader ignores the char c passed to unget since it doesn't
// need to place anything back into a buffer, and modifying the source
// string would be dangerous.
return string_reader->unget_char();
} else {
return file_reader->unget_char(c);
}
}
bool Reader::has_error() {
if (reader_type == ReaderType::File) {
return file_reader->has_error();
}
return false;
}
} // namespace scanf_core
} // namespace __llvm_libc
|
