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stdlib/FreeBSD/alloca.3 Libc-1725.40.4 Libc-763.13
--- Libc/Libc-1725.40.4/stdlib/FreeBSD/alloca.3
+++ Libc/Libc-763.13/stdlib/FreeBSD/alloca.3
@@ -34,25 +34,25 @@
 .Sh NAME
 .Nm alloca
 .Nd memory allocator
+.Sh LIBRARY
+.Lb libc
 .Sh SYNOPSIS
-.In alloca.h
-or
-.br
 .In stdlib.h
 .Ft void *
 .Fn alloca "size_t size"
 .Sh DESCRIPTION
 The
 .Fn alloca
-macro
+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
-returns a pointer to the beginning of the allocated space.
+function returns a pointer to the beginning of the allocated space.
 .Sh SEE ALSO
 .Xr brk 2 ,
 .Xr calloc 3 ,
@@ -60,20 +60,24 @@
 .Xr malloc 3 ,
 .Xr realloc 3
 .Sh HISTORY
+The
 .Fn alloca
-appeared in
+function appeared in
 .At 32v .
 .\" .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...
 .Sh BUGS
+The
 .Fn alloca
+function
 is machine and compiler dependent;
 its use is discouraged.
 .Pp
+The
 .Fn alloca
-is slightly unsafe because it cannot ensure that the pointer
+function is slightly unsafe because it cannot ensure that the pointer
 returned points to a valid and usable block of memory.
 The allocation made may exceed the bounds of the stack, or even go
 further into other objects in memory, and
@@ -82,8 +86,3 @@
 Avoid
 .Fn alloca
 with large unbounded allocations.
-.Pp
-The use of C99 variable-length arrays and
-.Fn alloca
-in the same function will cause the lifetime of alloca's storage to be limited to the block containing the
-.Fn alloca