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[libc] Add _Returns_twice to C++ code (#153602)

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Fixes issue with `<csetjmp>` which requires `_Returns_twice` but in C++
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This commit is contained in:
William Huynh
2025-08-19 09:28:23 +01:00
committed by GitHub
parent da05208bfb
commit 0c622d72fc
1 changed files with 7 additions and 0 deletions
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7
libc/include/__llvm-libc-common.h
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@@ -47,6 +47,13 @@
#define __NOEXCEPT throw()
#endif
#undef _Returns_twice
#if __cplusplus >= 201103L
#define _Returns_twice [[gnu::returns_twice]]
#else
#define _Returns_twice __attribute__((returns_twice))
#endif
// This macro serves as a generic cast implementation for use in both C and C++,
// similar to `__BIONIC_CAST` in Android.
#undef __LLVM_LIBC_CAST