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933b146f0a
As reported in bug 114869, the C front end wrongly creates nullptr_t as a built-in typedef; it should only be defined in <stddef.h>. While the type node needs a name for debug info generation, it doesn't need to be a valid identifier; use typeof (nullptr) instead, similar to how the C++ front end uses decltype(nullptr) for this purpose. Bootstrapped with no regressions for x86_64-pc-linux-gnu. PR c/114869 gcc/c/ * c-decl.cc (c_init_decl_processing): Register nullptr_type_node as typeof (nullptr) not nullptr_t. gcc/testsuite/ * gcc.dg/c23-nullptr-5.c: Use typeof (nullptr) not nullptr_t. * gcc.dg/c11-nullptr-2.c, gcc.dg/c11-nullptr-3.c, gcc.dg/c23-nullptr-7.c: New tests |
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