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-'\"
-'\" Copyright (c) 1996-1997 Sun Microsystems, Inc.
-'\"
-'\" See the file "license.terms" for information on usage and redistribution
-'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-'\"
-.TH Tcl_DoubleObj 3 8.0 Tcl "Tcl Library Procedures"
-.so man.macros
-.BS
-.SH NAME
-Tcl_NewDoubleObj, Tcl_SetDoubleObj, Tcl_GetDoubleFromObj \- manipulate Tcl values as floating-point values
-.SH SYNOPSIS
-.nf
-\fB#include <tcl.h>\fR
-.sp
-Tcl_Obj *
-\fBTcl_NewDoubleObj\fR(\fIdoubleValue\fR)
-.sp
-\fBTcl_SetDoubleObj\fR(\fIobjPtr, doubleValue\fR)
-.sp
-int
-\fBTcl_GetDoubleFromObj\fR(\fIinterp, objPtr, doublePtr\fR)
-.SH ARGUMENTS
-.AS Tcl_Interp doubleValue in/out
-.AP double doubleValue in
-A double-precision floating-point value used to initialize or set a Tcl value.
-.AP Tcl_Obj *objPtr in/out
-For \fBTcl_SetDoubleObj\fR, this points to the value in which to store a
-double value.
-For \fBTcl_GetDoubleFromObj\fR, this refers to the value
-from which to retrieve a double value.
-.AP Tcl_Interp *interp in/out
-When non-NULL, an error message is left here when double value retrieval fails.
-.AP double *doublePtr out
-Points to place to store the double value obtained from \fIobjPtr\fR.
-.BE
-
-.SH DESCRIPTION
-.PP
-These procedures are used to create, modify, and read Tcl values that
-hold double-precision floating-point values.
-.PP
-\fBTcl_NewDoubleObj\fR creates and returns a new Tcl value initialized to
-the double value \fIdoubleValue\fR.  The returned Tcl value is unshared.
-.PP
-\fBTcl_SetDoubleObj\fR sets the value of an existing Tcl value pointed to
-by \fIobjPtr\fR to the double value \fIdoubleValue\fR.  The \fIobjPtr\fR
-argument must point to an unshared Tcl value.  Any attempt to set the value
-of a shared Tcl value violates Tcl's copy-on-write policy.  Any existing
-string representation or internal representation in the unshared Tcl value
-will be freed as a consequence of setting the new value.
-.PP
-\fBTcl_GetDoubleFromObj\fR attempts to retrieve a double value from the
-Tcl value \fIobjPtr\fR.  If the attempt succeeds, then \fBTCL_OK\fR is
-returned, and the double value is written to the storage pointed to by
-\fIdoublePtr\fR.  If the attempt fails, then \fBTCL_ERROR\fR is returned,
-and if \fIinterp\fR is non-NULL, an error message is left in \fIinterp\fR.
-The \fBTcl_ObjType\fR of \fIobjPtr\fR may be changed to make subsequent
-calls to \fBTcl_GetDoubleFromObj\fR more efficient.
-'\" TODO: add discussion of treatment of NaN value
-.SH "SEE ALSO"
-Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult
-.SH KEYWORDS
-double, double value, double type, internal representation, value, value type, string representation