.TH "std::once_flag" 3cxx "Wed Jul 28 2021" "libstdc++" \" -*- nroff -*-
.ad l
.nh
.SH NAME
std::once_flag \- Flag type used by std::call_once\&.  

.SH SYNOPSIS
.br
.PP
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBonce_flag\fP (const \fBonce_flag\fP &)=delete"
.br
.RI "Deleted copy constructor\&. "
.ti -1c
.RI "\fBonce_flag\fP & \fBoperator=\fP (const \fBonce_flag\fP &)=delete"
.br
.RI "Deleted assignment operator\&. "
.in -1c
.SS "Friends"

.in +1c
.ti -1c
.RI "template<typename _Callable , typename\&.\&.\&. _Args> void \fBcall_once\fP (\fBonce_flag\fP &__once, _Callable &&__f, _Args &&\&.\&.\&. __args)"
.br
.RI "Invoke a callable and synchronize with other calls using the same flag\&. "
.in -1c
.SH "Detailed Description"
.PP 
Flag type used by std::call_once\&. 
.PP
Definition at line 674 of file mutex\&.
.SH "Constructor & Destructor Documentation"
.PP 
.SS "std::once_flag::once_flag (const \fBonce_flag\fP &)\fC [delete]\fP"

.PP
Deleted copy constructor\&. 
.SH "Member Function Documentation"
.PP 
.SS "\fBonce_flag\fP& std::once_flag::operator= (const \fBonce_flag\fP &)\fC [delete]\fP"

.PP
Deleted assignment operator\&. 
.SH "Friends And Related Function Documentation"
.PP 
.SS "template<typename _Callable , typename\&.\&.\&. _Args> void call_once (\fBonce_flag\fP & __once, _Callable && __f, _Args &&\&.\&.\&. __args)\fC [friend]\fP"

.PP
Invoke a callable and synchronize with other calls using the same flag\&. 
.PP
Definition at line 772 of file mutex\&.

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