.TH "__gnu_cxx::recursive_init_error" 3cxx "Sat Aug 14 2021" "libstdc++" \" -*- nroff -*-
.ad l
.nh
.SH NAME
__gnu_cxx::recursive_init_error \- Exception thrown by __cxa_guard_acquire\&.  

.SH SYNOPSIS
.br
.PP
.PP
Inherits \fBstd::exception\fP\&.
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "virtual const char * \fBwhat\fP () const _GLIBCXX_TXN_SAFE_DYN noexcept"
.br
.in -1c
.SH "Detailed Description"
.PP 
Exception thrown by __cxa_guard_acquire\&. 

C++ 2011 6\&.7 [stmt\&.dcl]/4: If control re-enters the declaration recursively while the variable is being initialized, the behavior is undefined\&.
.PP
Since we already have a library function to handle locking, we might as well check for this situation and throw an exception\&. We use the second byte of the guard variable to remember that we're in the middle of an initialization\&. 
.PP
Definition at line 696 of file cxxabi\&.h\&.
.SH "Member Function Documentation"
.PP 
.SS "virtual const char* std::exception::what () const\fC [virtual]\fP, \fC [noexcept]\fP, \fC [inherited]\fP"
Returns a C-style character string describing the general cause of the current error\&. 
.PP
Reimplemented in \fBstd::bad_typeid\fP, \fBstd::bad_cast\fP, \fBstd::future_error\fP, \fBstd::experimental::fundamentals_v1::bad_any_cast\fP, \fBstd::bad_function_call\fP, \fBstd::bad_weak_ptr\fP, \fBstd::bad_exception\fP, \fBstd::runtime_error\fP, \fBstd::logic_error\fP, \fBstd::bad_alloc\fP, and \fBstd::ios_base::failure\fP\&.

.SH "Author"
.PP 
Generated automatically by Doxygen for libstdc++ from the source code\&.