1 //===-- Writer definition 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 #include "writer.h"
10 #include "src/string/memory_utils/memset_implementations.h"
11 #include <stddef.h>
12 
13 namespace __llvm_libc {
14 namespace printf_core {
15 
16 int Writer::write(const char *new_string, size_t length) {
17   chars_written += length;
18   return raw_write(output, new_string, length);
19 }
20 
21 int Writer::write_chars(char new_char, size_t length) {
22   constexpr size_t BUFF_SIZE = 8;
23   char buff[BUFF_SIZE];
24   int result;
25   inline_memset(buff, new_char, BUFF_SIZE);
26   while (length > BUFF_SIZE) {
27     result = write(buff, BUFF_SIZE);
28     if (result < 0)
29       return result;
30     length -= BUFF_SIZE;
31   }
32   return write(buff, length);
33 }
34 
35 } // namespace printf_core
36 } // namespace __llvm_libc
37