| 1 | //===-- Implementation of nan function ------------------------------------===// |
|---|---|
| 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/math/nan.h" |
| 10 | #include "src/__support/common.h" |
| 11 | #include "src/__support/str_to_float.h" |
| 12 | #include "src/errno/libc_errno.h" |
| 13 | |
| 14 | namespace LIBC_NAMESPACE { |
| 15 | |
| 16 | LLVM_LIBC_FUNCTION(double, nan, (const char *arg)) { |
| 17 | auto result = internal::strtonan<double>(arg); |
| 18 | if (result.has_error()) |
| 19 | libc_errno = result.error; |
| 20 | return result.value; |
| 21 | } |
| 22 | |
| 23 | } // namespace LIBC_NAMESPACE |
| 24 |