| //===-- Implementation header of difftime -----------------------*- 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 | 
 | // | 
 | //===----------------------------------------------------------------------===// | 
 |  | 
 | #ifndef LLVM_LIBC_SRC_TIME_DIFFTIME_H | 
 | #define LLVM_LIBC_SRC_TIME_DIFFTIME_H | 
 |  | 
 | #include <time.h> | 
 |  | 
 | namespace LIBC_NAMESPACE { | 
 |  | 
 | double difftime(time_t end, time_t beginning); | 
 |  | 
 | } // namespace LIBC_NAMESPACE | 
 |  | 
 | #endif // LLVM_LIBC_SRC_TIME_DIFFTIME_H |