'\" te
.\" Copyright (c) 2005, Sun Microsystems, Inc. All Rights Reserved.
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
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.TH ATOMIC_INC 3C "February 17, 2023"
.SH NAME
atomic_inc, atomic_inc_8, atomic_inc_uchar, atomic_inc_16, atomic_inc_ushort,
atomic_inc_32, atomic_inc_uint, atomic_inc_ulong, atomic_inc_64,
atomic_inc_ptr, atomic_inc_8_nv, atomic_inc_uchar_nv, atomic_inc_16_nv,
atomic_inc_ushort_nv, atomic_inc_32_nv, atomic_inc_uint_nv,
atomic_inc_ulong_nv, atomic_inc_64_nv, atomic_inc_ptr_nv \- atomic increment
operations
.SH SYNOPSIS
.nf
#include <atomic.h>

\fBvoid\fR \fBatomic_inc_8\fR(\fBvolatile uint8_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_uchar\fR(\fBvolatile uchar_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_16\fR(\fBvolatile uint16_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_ushort\fR(\fBvolatile ushort_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_32\fR(\fBvolatile uint32_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_uint\fR(\fBvolatile uint_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_ulong\fR(\fBvolatile ulong_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_64\fR(\fBvolatile uint64_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid\fR \fBatomic_inc_ptr\fR(\fBvolatile void *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint8_t\fR \fBatomic_inc_8_nv\fR(\fBvolatile uint8_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuchar_t\fR \fBatomic_inc_uchar_nv\fR(\fBvolatile uchar_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint16_t\fR \fBatomic_inc_16_nv\fR(\fBvolatile uint16_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBushort_t\fR \fBatomic_inc_ushort_nv\fR(\fBvolatile ushort_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint32_t\fR \fBatomic_inc_32_nv\fR(\fBvolatile uint32_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint_t\fR \fBatomic_inc_uint_nv\fR(\fBvolatile uint_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBulong_t\fR \fBatomic_inc_ulong_nv\fR(\fBvolatile ulong_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBuint64_t\fR \fBatomic_inc_64_nv\fR(\fBvolatile uint64_t *\fR\fItarget\fR);
.fi

.LP
.nf
\fBvoid *\fR\fBatomic_inc_ptr_nv\fR(\fBvolatile void *\fR\fItarget\fR);
.fi

.SH DESCRIPTION
These functions enable the incrementing (by one) of the value stored in
\fItarget\fR to occur in an atomic manner.
.SH RETURN VALUES
The *\fB_nv()\fR variants of these functions return the new value of
\fItarget\fR.
.SH ERRORS
No errors are defined.
.SH ATTRIBUTES
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Stable
_
MT-Level	MT-Safe
.TE

.SH SEE ALSO
.BR atomic_add (3C),
.BR atomic_and (3C),
.BR atomic_bits (3C),
.BR atomic_cas (3C),
.BR atomic_dec (3C),
.BR atomic_or (3C),
.BR atomic_swap (3C),
.BR membar_ops (3C),
.BR attributes (7),
.BR atomic_ops (9F)
.SH NOTES
The *\fB_nv()\fR variants are substantially more expensive on some platforms
than the versions that do not return values. Do not use them unless you need to
know the new value \fBatomically\fR.