1//===-- Write integer Converter for printf ----------------------*- C++ -*-===//
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#ifndef LLVM_LIBC_SRC_STDIO_PRINTF_CORE_WRITE_INT_CONVERTER_H
10#define LLVM_LIBC_SRC_STDIO_PRINTF_CORE_WRITE_INT_CONVERTER_H
11
12#include "src/stdio/printf_core/core_structs.h"
13#include "src/stdio/printf_core/writer.h"
14
15#include <inttypes.h>
16#include <stddef.h>
17
18namespace LIBC_NAMESPACE {
19namespace printf_core {
20
21LIBC_INLINE int convert_write_int(Writer *writer,
22 const FormatSection &to_conv) {
23
24#ifndef LIBC_COPT_PRINTF_NO_NULLPTR_CHECKS
25 // This is an additional check added by LLVM-libc.
26 if (to_conv.conv_val_ptr == nullptr)
27 return NULLPTR_WRITE_ERROR;
28#endif // LIBC_COPT_PRINTF_NO_NULLPTR_CHECKS
29
30 int written = writer->get_chars_written();
31
32 switch (to_conv.length_modifier) {
33 case LengthModifier::none:
34 *reinterpret_cast<int *>(to_conv.conv_val_ptr) = written;
35 break;
36 case LengthModifier::l:
37 *reinterpret_cast<long *>(to_conv.conv_val_ptr) = written;
38 break;
39 case LengthModifier::ll:
40 case LengthModifier::L:
41 *reinterpret_cast<long long *>(to_conv.conv_val_ptr) = written;
42 break;
43 case LengthModifier::h:
44 *reinterpret_cast<short *>(to_conv.conv_val_ptr) =
45 static_cast<short>(written);
46 break;
47 case LengthModifier::hh:
48 *reinterpret_cast<signed char *>(to_conv.conv_val_ptr) =
49 static_cast<signed char>(written);
50 break;
51 case LengthModifier::z:
52 *reinterpret_cast<size_t *>(to_conv.conv_val_ptr) = written;
53 break;
54 case LengthModifier::t:
55 *reinterpret_cast<ptrdiff_t *>(to_conv.conv_val_ptr) = written;
56 break;
57 case LengthModifier::j:
58 case LengthModifier::w:
59 case LengthModifier::wf:
60 *reinterpret_cast<uintmax_t *>(to_conv.conv_val_ptr) = written;
61 break;
62 }
63 return WRITE_OK;
64}
65
66} // namespace printf_core
67} // namespace LIBC_NAMESPACE
68
69#endif // LLVM_LIBC_SRC_STDIO_PRINTF_CORE_WRITE_INT_CONVERTER_H
70

source code of libc/src/stdio/printf_core/write_int_converter.h