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Diffstat (limited to 'lib/libc/stdlib/alloca.3')
-rw-r--r-- | lib/libc/stdlib/alloca.3 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/lib/libc/stdlib/alloca.3 b/lib/libc/stdlib/alloca.3 new file mode 100644 index 0000000..ad5aaf69 --- /dev/null +++ b/lib/libc/stdlib/alloca.3 @@ -0,0 +1,78 @@ +.\" Copyright (c) 1980, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)alloca.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt ALLOCA 3 +.Os BSD 4 +.Sh NAME +.Nm alloca +.Nd memory allocator +.Sh SYNOPSIS +.Fd #include <stdlib.h> +.Ft void * +.Fn alloca "size_t size" +.Sh DESCRIPTION +The +.Fn alloca +function +allocates +.Fa size +bytes of space in the stack frame of the caller. +This temporary space is automatically freed on +return. +.Sh RETURN VALUES +The +.Fn alloca +function returns a pointer to the beginning of the allocated space. +If the allocation failed, a +.Dv NULL +pointer is returned. +.Sh SEE ALSO +.Xr brk 2 , +.Xr pagesize 2 +.Xr calloc 3 , +.Xr malloc 3 , +.Xr realloc 3 , +.Sh BUGS +The +.Fn alloca +function +is machine dependent; its use is discouraged. +.\" .Sh HISTORY +.\" The +.\" .Fn alloca +.\" function appeared in +.\" .Bx ?? . +.\" The function appeared in 32v, pwb and pwb.2 and in 3bsd 4bsd +.\" The first man page (or link to a man page that I can find at the +.\" moment is 4.3... |