libc/src/__support/integer_operations.h

   1 //===-- Utils for abs and friends -------------------------------*- C++ -*-===//
   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 #ifndef LLVM_LIBC_SRC___SUPPORT_INTEGER_OPERATIONS_H
  10 #define LLVM_LIBC_SRC___SUPPORT_INTEGER_OPERATIONS_H
  11
  12 #include "src/__support/CPP/type_traits.h"
  13 #include "src/__support/macros/attributes.h" // LIBC_INLINE
  14 #include "src/__support/macros/config.h"
  15
  16 namespace LIBC_NAMESPACE_DECL {
  17
  18 template <typename T>
  19 LIBC_INLINE static constexpr cpp::enable_if_t<cpp::is_integral_v<T>, T>
  20 integer_abs(T n) {
  21   return (n < 0) ? -n : n;
  22 }
  23
  24 template <typename T>
  25 LIBC_INLINE static constexpr cpp::enable_if_t<cpp::is_integral_v<T>, void>
  26 integer_rem_quo(T x, T y, T &quot, T &rem) {
  27   quot = x / y;
  28   rem = x % y;
  29 }
  30
  31 } // namespace LIBC_NAMESPACE_DECL
  32
  33 #endif // LLVM_LIBC_SRC___SUPPORT_INTEGER_OPERATIONS_H