1 //===-- Shared utility for rand -------------------------------------------===// 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/stdlib/rand_util.h" 10 #include "src/__support/CPP/atomic.h" 11 #include "src/__support/macros/attributes.h" 12 13 namespace LIBC_NAMESPACE { 14 15 // C standard 7.10p2: If 'rand' is called before 'srand' it is to 16 // proceed as if the 'srand' function was called with a value of '1'. 17 cpp::Atomic<unsigned long> rand_next = 1; 18 19 } // namespace LIBC_NAMESPACE 20