116d5c242SMichael Jones //===-- Implementation of vsprintf ------------------------------*- C++ -*-===// 216d5c242SMichael Jones // 316d5c242SMichael Jones // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 416d5c242SMichael Jones // See https://llvm.org/LICENSE.txt for license information. 516d5c242SMichael Jones // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 616d5c242SMichael Jones // 716d5c242SMichael Jones //===----------------------------------------------------------------------===// 816d5c242SMichael Jones 916d5c242SMichael Jones #include "src/stdio/vsprintf.h" 1016d5c242SMichael Jones 1116d5c242SMichael Jones #include "src/__support/CPP/limits.h" 1216d5c242SMichael Jones #include "src/__support/arg_list.h" 13*5ff3ff33SPetr Hosek #include "src/__support/macros/config.h" 1416d5c242SMichael Jones #include "src/stdio/printf_core/printf_main.h" 1516d5c242SMichael Jones #include "src/stdio/printf_core/writer.h" 1616d5c242SMichael Jones 1716d5c242SMichael Jones #include <stdarg.h> 1816d5c242SMichael Jones 19*5ff3ff33SPetr Hosek namespace LIBC_NAMESPACE_DECL { 2016d5c242SMichael Jones 2116d5c242SMichael Jones LLVM_LIBC_FUNCTION(int, vsprintf, 2216d5c242SMichael Jones (char *__restrict buffer, const char *__restrict format, 2316d5c242SMichael Jones va_list vlist)) { 2416d5c242SMichael Jones internal::ArgList args(vlist); // This holder class allows for easier copying 2516d5c242SMichael Jones // and pointer semantics, as well as handling 2616d5c242SMichael Jones // destruction automatically. 2716d5c242SMichael Jones 2816d5c242SMichael Jones printf_core::WriteBuffer wb(buffer, cpp::numeric_limits<size_t>::max()); 2916d5c242SMichael Jones printf_core::Writer writer(&wb); 3016d5c242SMichael Jones 3116d5c242SMichael Jones int ret_val = printf_core::printf_main(&writer, format, args); 3216d5c242SMichael Jones wb.buff[wb.buff_cur] = '\0'; 3316d5c242SMichael Jones return ret_val; 3416d5c242SMichael Jones } 3516d5c242SMichael Jones 36*5ff3ff33SPetr Hosek } // namespace LIBC_NAMESPACE_DECL 37