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*
* Helper functions for LinkTraceProc and ObjValue. These are all
* factored out here to make those functions simpler.
*
*----------------------------------------------------------------------
*/
static inline int
static inline bool
GetInt(
Tcl_Obj *objPtr,
int *intPtr)
{
return (Tcl_GetIntFromObj(NULL, objPtr, intPtr) != TCL_OK
&& GetInvalidIntFromObj(objPtr, intPtr) != TCL_OK);
}
static inline int
GetWide(
Tcl_Obj *objPtr,
Tcl_WideInt *widePtr)
{
if (TclGetWideIntFromObj(NULL, objPtr, widePtr) != TCL_OK) {
int intValue;
if (GetInvalidIntFromObj(objPtr, &intValue) != TCL_OK) {
return 1;
return TCL_ERROR;
}
*widePtr = intValue;
}
return 0;
return TCL_OK;
}
static inline int
GetUWide(
Tcl_Obj *objPtr,
Tcl_WideUInt *uwidePtr)
{
if (Tcl_GetWideUIntFromObj(NULL, objPtr, uwidePtr) != TCL_OK) {
int intValue;
if (GetInvalidIntFromObj(objPtr, &intValue) != TCL_OK) {
return 1;
return TCL_ERROR;
}
*uwidePtr = intValue;
}
return 0;
return TCL_OK;
}
static inline int
GetDouble(
Tcl_Obj *objPtr,
double *dblPtr)
{
if (Tcl_GetDoubleFromObj(NULL, objPtr, dblPtr) == TCL_OK) {
return 0;
return TCL_OK;
} else {
#ifdef ACCEPT_NAN
Tcl_ObjInternalRep *irPtr = TclFetchInternalRep(objPtr, &tclDoubleType);
if (irPtr != NULL) {
*dblPtr = irPtr->doubleValue;
return 0;
return TCL_OK;
}
#endif /* ACCEPT_NAN */
return GetInvalidDoubleFromObj(objPtr, dblPtr) != TCL_OK;
}
}
static inline int
static inline bool
EqualDouble(
double a,
double b)
{
return (a == b)
#ifdef ACCEPT_NAN
|| (isnan(a) && isnan(b))
#endif /* ACCEPT_NAN */
;
}
static inline int
static inline bool
IsSpecial(
double a)
{
return isinf(a)
#ifdef ACCEPT_NAN
|| isnan(a)
#endif /* ACCEPT_NAN */
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TCL_UNUSED(const char *) /*name2*/,
/* Links can only be made to global variables,
* so we can find them with need to resolve
* caller-supplied name in caller context. */
int flags) /* Miscellaneous additional information. */
{
Link *linkPtr = (Link *)clientData;
int changed;
bool changed;
Tcl_Size valueLength = 0;
const char *value;
char **pp;
Tcl_Obj *valueObj;
int valueInt;
Tcl_WideInt valueWide;
Tcl_WideUInt valueUWide;
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break;
case TCL_LINK_FLOAT:
changed = !EqualDouble(LinkedVar(float), linkPtr->lastValue.f);
break;
case TCL_LINK_STRING:
case TCL_LINK_CHARS:
case TCL_LINK_BINARY:
changed = 1;
changed = true;
break;
default:
changed = 0;
changed = false;
/* return (char *) "internal error: bad linked variable type"; */
}
}
if (changed) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
}
|