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src_loc comments

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This commit is contained in:
Ralf W. Grosse-Kunstleve 2022-07-11 10:22:05 -07:00
parent 75c659866f
commit bd0dbd7cf5
1 changed files with 7 additions and 0 deletions
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7
include/pybind11/detail/descr.h
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@ -31,6 +31,11 @@ PYBIND11_NAMESPACE_BEGIN(detail)
#ifdef PYBIND11_DETAIL_DESCR_SRC_LOC_ON #ifdef PYBIND11_DETAIL_DESCR_SRC_LOC_ON
// Not using std::source_location because
// (https://en.cppreference.com/w/cpp/utility/source_location):
// 1. It is unspecified whether the copy/move constructors and the copy/move
// assignment operators of source_location are trivial and/or constexpr.
// 2. A no-op stub is needed (below).
struct src_loc { struct src_loc {
const char *file; const char *file;
unsigned line; unsigned line;
@ -52,6 +57,8 @@ struct src_loc {
#else #else
// No-op stub, for compilers that do not support __builtin_FILE(), __builtin_LINE(),
// or for situations in which it is desirable to disable the src_loc feature.
struct src_loc { struct src_loc {
constexpr src_loc(const char *, unsigned) {} constexpr src_loc(const char *, unsigned) {}