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+.\" $Xorg: XtMalloc.man,v 1.4 2001/03/16 17:53:52 pookie Exp $
+.\"
+.\" Copyright 1993 X Consortium
+.\"
+.\" Permission is hereby granted, free of charge, to any person obtaining
+.\" a copy of this software and associated documentation files (the
+.\" "Software"), to deal in the Software without restriction, including
+.\" without limitation the rights to use, copy, modify, merge, publish,
+.\" distribute, sublicense, and/or sell copies of the Software, and to
+.\" permit persons to whom the Software is furnished to do so, subject to
+.\" the following conditions:
+.\"
+.\" The above copyright notice and this permission notice shall be
+.\" included in all copies or substantial portions of the Software.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+.\" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+.\" IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+.\" OTHER DEALINGS IN THE SOFTWARE.
+.\"
+.\" Except as contained in this notice, the name of the X Consortium shall
+.\" not be used in advertising or otherwise to promote the sale, use or
+.\" other dealings in this Software without prior written authorization
+.\" from the X Consortium.
+.ds tk X Toolkit
+.ds xT X Toolkit Intrinsics \- C Language Interface
+.ds xI Intrinsics
+.ds xW X Toolkit Athena Widgets \- C Language Interface
+.ds xL Xlib \- C Language X Interface
+.ds xC Inter-Client Communication Conventions Manual
+.ds Rn 3
+.ds Vn 2.2
+.hw XtNew-String wid-get
+.na
+.de Ds
+.nf
+.\\$1D \\$2 \\$1
+.ft 1
+.ps \\n(PS
+.\".if \\n(VS>=40 .vs \\n(VSu
+.\".if \\n(VS<=39 .vs \\n(VSp
+..
+.de De
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+.if \\n(BD .DF
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+.in \\n(OIu
+.if \\n(TM .ls 2
+.sp \\n(DDu
+.fi
+..
+.de FD
+.LP
+.KS
+.TA .5i 3i
+.ta .5i 3i
+.nf
+..
+.de FN
+.fi
+.KE
+.LP
+..
+.de IN		\" send an index entry to the stderr
+..
+.de C{
+.KS
+.nf
+.D
+.\"
+.\"	choose appropriate monospace font
+.\"	the imagen conditional, 480,
+.\"	may be changed to L if LB is too
+.\"	heavy for your eyes...
+.\"
+.ie "\\*(.T"480" .ft L
+.el .ie "\\*(.T"300" .ft L
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+.de C}
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+.de Pn
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+.el \\$1\fI\^\\$2\^\fP\\$3
+..
+.de ZN
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+.el \fI\^\\$1\^\fP\\$2
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+.de NT
+.ne 7
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+.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2
+.if \\n(.$ .if !'\\$1'C' .ds NO \\$1
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+.		\" Note End -- doug kraft 3/85
+.de NE
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+..
+.ny0
+.TH XtMalloc 3Xt "Release 6.6" "X Version 11" "XT FUNCTIONS"
+.SH NAME
+XtMalloc, XtCalloc, XtRealloc, XtFree, XtNew, XtNewString \- memory management functions
+.SH SYNTAX
+char *XtMalloc(\fIsize\fP);
+.br
+      Cardinal \fIsize\fP;
+.LP
+char *XtCalloc(\fInum\fP, \fIsize\fP);
+.br
+      Cardinal \fInum\fP;
+.br
+      Cardinal \fIsize\fP;
+.LP
+char *XtRealloc(\fIptr\fP, \fInum\fP);
+.br
+      char *\fIptr\fP;
+.br
+      Cardinal \fInum\fP;
+.LP
+void XtFree(\fIptr\fP);
+.br
+      char *\fIptr\fP;
+.LP
+\fItype\fP *XtNew(\fItype\fP);
+.br
+      \fItype\fP;
+.LP
+String XtNewString(\fIstring\fP);
+.br
+      String \fIstring\fP;
+.SH ARGUMENTS
+.IP \fInum\fP 1i
+Specifies the number of bytes or array elements.
+.ds Po to the old storage or to the block of storage that is to be freed
+.IP \fIptr\fP 1i
+Specifies a pointer \*(Po.
+.IP \fIsize\fP 1i
+Specifies the size of an array element (in bytes) or the number of bytes
+desired.
+.IP \fIstring\fP 1i
+Specifies a previously declared string.
+.IP \fItype\fP 1i
+Specifies a previously declared data type.
+.SH DESCRIPTION
+The
+.ZN XtMalloc
+functions returns a pointer to a block of storage of at least 
+the specified size bytes.
+If there is insufficient memory to allocate the new block,
+.ZN XtMalloc
+calls
+.ZN XtErrorMsg .
+.LP
+The
+.ZN XtCalloc
+function allocates space for the specified number of array elements 
+of the specified size and initializes the space to zero.
+If there is insufficient memory to allocate the new block,
+.ZN XtCalloc
+calls
+.ZN XtErrorMsg .
+.LP
+The
+.ZN XtRealloc
+function changes the size of a block of storage (possibly moving it).
+Then, it copies the old contents (or as much as will fit) into the new block
+and frees the old block.
+If there is insufficient memory to allocate the new block,
+.ZN XtRealloc
+calls
+.ZN XtErrorMsg .
+If ptr is NULL,
+.ZN XtRealloc
+allocates the new storage without copying the old contents;
+that is, it simply calls
+.ZN XtMalloc .
+.LP
+The
+.ZN XtFree
+function returns storage and allows it to be reused.
+If ptr is NULL,
+.ZN XtFree
+returns immediately.
+.LP
+.ZN XtNew
+returns a pointer to the allocated storage.
+If there is insufficient memory to allocate the new block,
+.ZN XtNew
+calls
+.ZN XtErrorMsg .
+.ZN XtNew
+is a convenience macro that calls
+.ZN XtMalloc
+with the following arguments specified:
+.LP
+.Ds
+.TA .5i
+.ta .5i
+((type *) XtMalloc((unsigned) sizeof(type))
+.De
+.LP
+.ZN XtNewString
+returns a pointer to the allocated storage.
+If there is insufficient memory to allocate the new block,
+.ZN XtNewString
+calls
+.ZN XtErrorMsg .
+.ZN XtNewString
+is a convenience macro that calls
+.ZN XtMalloc
+with the following arguments specified:
+.LP
+.Ds 
+.TA .5i
+.ta .5i
+(strcpy(XtMalloc((unsigned) strlen(str) + 1), str))
+.De
+.SH "SEE ALSO"
+.br
+\fI\*(xT\fP
+.br
+\fI\*(xL\fP