1 //===-- Starting point 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 "src/stdio/printf_core/printf_main.h" 10 11 #include "src/__support/arg_list.h" 12 #include "src/stdio/printf_core/converter.h" 13 #include "src/stdio/printf_core/core_structs.h" 14 #include "src/stdio/printf_core/parser.h" 15 #include "src/stdio/printf_core/writer.h" 16 17 #include <stddef.h> 18 19 namespace __llvm_libc { 20 namespace printf_core { 21 22 int printf_main(Writer *writer, const char *__restrict str, 23 internal::ArgList &args) { 24 Parser parser(str, args); 25 int result = 0; 26 for (FormatSection cur_section = parser.get_next_section(); 27 cur_section.raw_len > 0; cur_section = parser.get_next_section()) { 28 if (cur_section.has_conv) 29 result = convert(writer, cur_section); 30 else 31 result = writer->write(cur_section.raw_string, cur_section.raw_len); 32 33 if (result < 0) 34 return result; 35 } 36 37 return writer->get_chars_written(); 38 } 39 40 } // namespace printf_core 41 } // namespace __llvm_libc 42