GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  TCL_NEWDOUBLEOBJ (3)

NAME

Tcl_NewDoubleObj, Tcl_SetDoubleObj, Tcl_GetDoubleFromObj - manipulate Tcl objects as floating-point values

CONTENTS

Synopsis
Arguments
Description
Keywords

SYNOPSIS

#include <tcl.h>

Tcl_Obj * Tcl_NewDoubleObj(doubleValue)

Tcl_SetDoubleObj(objPtr, doubleValue)

int Tcl_GetDoubleFromObj(interp, objPtr, doublePtr)

ARGUMENTS


.TP 15 double doubleValue (in)
double    doubleValue double A double-precision floating-point value used to initialize or set a Tcl object.
.TP 15 Tcl_Obj *objPtr (in/out)
Tcl_Obj   *objPtr Tcl_Obj For Tcl_SetDoubleObj, this points to the object in which to store a double value. For Tcl_GetDoubleFromObj, this refers to the object from which to retrieve a double value.
.TP 15 Tcl_Interp *interp (in/out)
Tcl_Interp*interp Tcl_Interp When non-NULL, an error message is left here when double value retrieval fails.
.TP 15 double *doublePtr (out)
double    *doublePtr double Points to place to store the double value obtained from objPtr.

   








\L’|0u-1v’\l’75u+3n_’\L’0u+1v-0u’\l’|0u-1.5n_’



\L’|0u-1v’\L’0u+1v-0u’\l’|0u-1.5n_’





DESCRIPTION

These procedures are used to create, modify, and read Tcl objects that hold double-precision floating-point values.

Tcl_NewDoubleObj creates and returns a new Tcl object initialized to the double value doubleValue. The returned Tcl object is unshared.

Tcl_SetDoubleObj sets the value of an existing Tcl object pointed to by objPtr to the double value doubleValue. The objPtr argument must point to an unshared Tcl object. Any attempt to set the value of a shared Tcl object violates Tcl’s copy-on-write policy. Any existing string representation or internal representation in the unshared Tcl object will be freed as a consequence of setting the new value.

Tcl_GetDoubleFromObj attempts to retreive a double value from the Tcl object objPtr. If the attempt succeeds, then TCL_OK is returned, and the double value is written to the storage pointed to by doublePtr. If the attempt fails, then TCL_ERROR is returned, and if interp is non-NULL, an error message is left in interp. The Tcl_ObjType of objPtr may be changed to make subsequent calls to Tcl_GetDoubleFromObj more efficient.

SEE ALSO

Tcl_NewObj, Tcl_DecrRefCount, Tcl_IncrRefCount, Tcl_GetObjResult

KEYWORDS

double, double object, double type, internal representation, object, object type, string representation
Search for    or go to Top of page |  Section 3 |  Main Index


Tcl TCL_DOUBLEOBJ (3) 8.0

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.