diff options
Diffstat (limited to 'generic/tclObj.c')
| -rw-r--r-- | generic/tclObj.c | 53 |
1 files changed, 17 insertions, 36 deletions
diff --git a/generic/tclObj.c b/generic/tclObj.c index 9c34908..3cf3760 100644 --- a/generic/tclObj.c +++ b/generic/tclObj.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclObj.c,v 1.42.2.9 2004/10/27 15:39:36 kennykb Exp $ + * RCS: @(#) $Id: tclObj.c,v 1.42.2.10 2005/04/20 16:06:17 dgp Exp $ */ #include "tclInt.h" @@ -1745,8 +1745,8 @@ Tcl_GetIntFromObj(interp, objPtr, intPtr) register Tcl_Obj *objPtr; /* The object from which to get a int. */ register int *intPtr; /* Place to store resulting int. */ { - register long l = 0; int result; + Tcl_WideInt w = 0; /* * If the object isn't already an integer of any width, try to @@ -1764,45 +1764,26 @@ Tcl_GetIntFromObj(interp, objPtr, intPtr) * Object should now be either int or wide. Get its value. */ - if (objPtr->typePtr == &tclIntType) { - l = objPtr->internalRep.longValue; - } else if (objPtr->typePtr == &tclWideIntType) { #ifndef TCL_WIDE_INT_IS_LONG - /* - * If the object is already a wide integer, don't convert it. - * This code allows for any integer in the range -ULONG_MAX to - * ULONG_MAX to be converted to a long, ignoring overflow. - * The rule preserves existing semantics for conversion of - * integers on input, but avoids inadvertent demotion of - * wide integers to 32-bit ones in the internal rep. - */ - - Tcl_WideInt w = objPtr->internalRep.wideValue; - if (w >= -(Tcl_WideInt)(ULONG_MAX) && w <= (Tcl_WideInt)(ULONG_MAX)) { - l = Tcl_WideAsLong(w); - } else { - goto tooBig; - } -#else - l = objPtr->internalRep.longValue; + if (objPtr->typePtr == &tclWideIntType) { + w = objPtr->internalRep.wideValue; + } else #endif - } else { - Tcl_Panic( "string->integer conversion failed to convert the obj." ); + { + w = Tcl_LongAsWide(objPtr->internalRep.longValue); } - if (((long)((int)l)) == l) { - *intPtr = (int)l; - return TCL_OK; - } -#ifndef TCL_WIDE_INT_IS_LONG - tooBig: -#endif - if (interp != NULL) { - Tcl_ResetResult(interp); - Tcl_AppendToObj(Tcl_GetObjResult(interp), - "integer value too large to represent as non-long integer", -1); + if ((LLONG_MAX > UINT_MAX) + && ((w > UINT_MAX) || (w < -(Tcl_WideInt)UINT_MAX))) { + if (interp != NULL) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "integer value too large to represent as non-long integer", + -1)); + } + return TCL_ERROR; } - return TCL_ERROR; + *intPtr = (int)w; + return TCL_OK; } /* |