| //===-- Implementation of strfromd ------------------------------*- 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/stdlib/strfromd.h" |
| #include "src/stdlib/str_from_util.h" |
| |
| namespace LIBC_NAMESPACE { |
| |
| LLVM_LIBC_FUNCTION(int, strfromd, |
| (char *__restrict s, size_t n, const char *__restrict format, |
| double fp)) { |
| LIBC_ASSERT(s != nullptr); |
| |
| printf_core::FormatSection section = |
| internal::parse_format_string(format, fp); |
| printf_core::WriteBuffer wb(s, (n > 0 ? n - 1 : 0)); |
| printf_core::Writer writer(&wb); |
| |
| int result = 0; |
| if (section.has_conv) |
| result = internal::strfromfloat_convert<double>(&writer, section); |
| else |
| result = writer.write(section.raw_string); |
| |
| if (result < 0) |
| return result; |
| |
| if (n > 0) |
| wb.buff[wb.buff_cur] = '\0'; |
| |
| return writer.get_chars_written(); |
| } |
| |
| } // namespace LIBC_NAMESPACE |