10504e932SNishant Mittal //===-- Implementation of nan function ------------------------------------===// 20504e932SNishant Mittal // 30504e932SNishant Mittal // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40504e932SNishant Mittal // See https://llvm.org/LICENSE.txt for license information. 50504e932SNishant Mittal // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60504e932SNishant Mittal // 70504e932SNishant Mittal //===----------------------------------------------------------------------===// 80504e932SNishant Mittal 90504e932SNishant Mittal #include "src/math/nan.h" 100504e932SNishant Mittal #include "src/__support/common.h" 11*5ff3ff33SPetr Hosek #include "src/__support/macros/config.h" 120504e932SNishant Mittal #include "src/__support/str_to_float.h" 130504e932SNishant Mittal #include "src/errno/libc_errno.h" 140504e932SNishant Mittal 15*5ff3ff33SPetr Hosek namespace LIBC_NAMESPACE_DECL { 160504e932SNishant Mittal 170504e932SNishant Mittal LLVM_LIBC_FUNCTION(double, nan, (const char *arg)) { 180504e932SNishant Mittal auto result = internal::strtonan<double>(arg); 190504e932SNishant Mittal if (result.has_error()) 200504e932SNishant Mittal libc_errno = result.error; 210504e932SNishant Mittal return result.value; 220504e932SNishant Mittal } 230504e932SNishant Mittal 24*5ff3ff33SPetr Hosek } // namespace LIBC_NAMESPACE_DECL 25