1 //===-- Extended-precision atan2 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/atan2l.h" 10 #include "src/__support/common.h" 11 #include "src/__support/macros/properties/types.h" 12 #include "src/math/atan2.h" 13 14 namespace LIBC_NAMESPACE_DECL { 15 16 // TODO: Implement this for extended precision. 17 LLVM_LIBC_FUNCTION(long double, atan2l, (long double y, long double x)) { 18 #if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64) 19 return static_cast<long double>( 20 atan2(static_cast<double>(y), static_cast<double>(x))); 21 #else 22 #error "Extended precision is not yet supported" 23 #endif 24 } 25 26 } // namespace LIBC_NAMESPACE_DECL 27