| //===-- Shared utility for rand -------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/stdlib/rand_util.h" |
| #include "src/__support/macros/attributes.h" |
| |
| namespace LIBC_NAMESPACE { |
| |
| #ifdef LIBC_TARGET_ARCH_IS_GPU |
| // FIXME: Local GPU memory cannot be initialized so we cannot currently provide |
| // a standard compliant default value. |
| ThreadLocal<unsigned long> rand_next; |
| #else |
| // C standard 7.10p2: If 'rand' is called before 'srand' it is to proceed as if |
| // the 'srand' function was called with a value of '1'. |
| LIBC_THREAD_LOCAL unsigned long rand_next = 1; |
| #endif |
| |
| } // namespace LIBC_NAMESPACE |
