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OpenFPGA/libs/EXTERNAL/tcl8.6.12/generic/tclTestObj.c

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adding Tcl interface to vpr
2022-06-07 11:15:20 -05:00
/*
* tclTestObj.c --
*
* This file contains C command functions for the additional Tcl commands
* that are used for testing implementations of the Tcl object types.
* These commands are not normally included in Tcl applications; they're
* only used for testing.
*
* Copyright (c) 1995-1998 Sun Microsystems, Inc.
* Copyright (c) 1999 by Scriptics Corporation.
* Copyright (c) 2005 by Kevin B. Kenny. All rights reserved.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#ifndef USE_TCL_STUBS
# define USE_TCL_STUBS
#endif
#include "tclInt.h"
#include "tommath.h"
#include "tclStringRep.h"
/*
* Forward declarations for functions defined later in this file:
*/
static int CheckIfVarUnset(Tcl_Interp *interp, Tcl_Obj **varPtr, int varIndex);
static int GetVariableIndex(Tcl_Interp *interp,
const char *string, int *indexPtr);
static void SetVarToObj(Tcl_Obj **varPtr, int varIndex, Tcl_Obj *objPtr);
static int TestbignumobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
static int TestbooleanobjCmd(ClientData dummy,
Tcl_Interp *interp, int objc,
Tcl_Obj *const objv[]);
static int TestdoubleobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
static int TestindexobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
static int TestintobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
static int TestlistobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
static int TestobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
static int TeststringobjCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const objv[]);
#define VARPTR_KEY "TCLOBJTEST_VARPTR"
#define NUMBER_OF_OBJECT_VARS 20
static void VarPtrDeleteProc(ClientData clientData, Tcl_Interp *interp)
{
int i;
Tcl_Obj **varPtr = (Tcl_Obj **) clientData;
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
if (varPtr[i]) Tcl_DecrRefCount(varPtr[i]);
}
Tcl_DeleteAssocData(interp, VARPTR_KEY);
ckfree(varPtr);
}
static Tcl_Obj **GetVarPtr(Tcl_Interp *interp)
{
Tcl_InterpDeleteProc *proc;
return (Tcl_Obj **) Tcl_GetAssocData(interp, VARPTR_KEY, &proc);
}
/*
*----------------------------------------------------------------------
*
* TclObjTest_Init --
*
* This function creates additional commands that are used to test the
* Tcl object support.
*
* Results:
* Returns a standard Tcl completion code, and leaves an error
* message in the interp's result if an error occurs.
*
* Side effects:
* Creates and registers several new testing commands.
*
*----------------------------------------------------------------------
*/
int
TclObjTest_Init(
Tcl_Interp *interp)
{
int i;
/*
* An array of Tcl_Obj pointers used in the commands that operate on or get
* the values of Tcl object-valued variables. varPtr[i] is the i-th variable's
* Tcl_Obj *.
*/
Tcl_Obj **varPtr;
varPtr = (Tcl_Obj **) ckalloc(NUMBER_OF_OBJECT_VARS *sizeof(varPtr[0]));
if (!varPtr) {
return TCL_ERROR;
}
Tcl_SetAssocData(interp, VARPTR_KEY, VarPtrDeleteProc, varPtr);
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
varPtr[i] = NULL;
}
Tcl_CreateObjCommand(interp, "testbignumobj", TestbignumobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testbooleanobj", TestbooleanobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testdoubleobj", TestdoubleobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testintobj", TestintobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testindexobj", TestindexobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testlistobj", TestlistobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testobj", TestobjCmd, NULL, NULL);
Tcl_CreateObjCommand(interp, "teststringobj", TeststringobjCmd,
NULL, NULL);
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestbignumobjCmd --
*
* This function implements the "testbignumobj" command. It is used
* to exercise the bignum Tcl object type implementation.
*
* Results:
* Returns a standard Tcl object result.
*
* Side effects:
* Creates and frees bignum objects; converts objects to have bignum
* type.
*
*----------------------------------------------------------------------
*/
static int
TestbignumobjCmd(
ClientData clientData, /* unused */
Tcl_Interp *interp, /* Tcl interpreter */
int objc, /* Argument count */
Tcl_Obj *const objv[]) /* Argument vector */
{
const char *const subcmds[] = {
"set", "get", "mult10", "div10", "iseven", "radixsize", NULL
};
enum options {
BIGNUM_SET, BIGNUM_GET, BIGNUM_MULT10, BIGNUM_DIV10, BIGNUM_ISEVEN,
BIGNUM_RADIXSIZE
};
int index, varIndex;
const char *string;
mp_int bignumValue;
Tcl_Obj **varPtr;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], subcmds, "option", 0,
&index) != TCL_OK) {
return TCL_ERROR;
}
string = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, string, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
switch (index) {
case BIGNUM_SET:
if (objc != 4) {
Tcl_WrongNumArgs(interp, 2, objv, "var value");
return TCL_ERROR;
}
string = Tcl_GetString(objv[3]);
if (mp_init(&bignumValue) != MP_OKAY) {
Tcl_SetObjResult(interp,
Tcl_NewStringObj("error in mp_init", -1));
return TCL_ERROR;
}
if (mp_read_radix(&bignumValue, string, 10) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp,
Tcl_NewStringObj("error in mp_read_radix", -1));
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared),
* we must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBignumObj(varPtr[varIndex], &bignumValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&bignumValue));
}
break;
case BIGNUM_GET:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
break;
case BIGNUM_MULT10:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_mul_d(&bignumValue, 10, &bignumValue) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp,
Tcl_NewStringObj("error in mp_mul_d", -1));
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBignumObj(varPtr[varIndex], &bignumValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&bignumValue));
}
break;
case BIGNUM_DIV10:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_div_d(&bignumValue, 10, &bignumValue, NULL) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp,
Tcl_NewStringObj("error in mp_div_d", -1));
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBignumObj(varPtr[varIndex], &bignumValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&bignumValue));
}
break;
case BIGNUM_ISEVEN:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_mod_2d(&bignumValue, 1, &bignumValue) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp,
Tcl_NewStringObj("error in mp_mod_2d", -1));
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], mp_iszero(&bignumValue));
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewIntObj(mp_iszero(&bignumValue)));
}
mp_clear(&bignumValue);
break;
case BIGNUM_RADIXSIZE:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_radix_size(&bignumValue, 10, &index) != MP_OKAY) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], index);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewIntObj(index));
}
mp_clear(&bignumValue);
break;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestbooleanobjCmd --
*
* This function implements the "testbooleanobj" command. It is used to
* test the boolean Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees boolean objects, and also converts objects to
* have boolean type.
*
*----------------------------------------------------------------------
*/
static int
TestbooleanobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int varIndex, boolValue;
const char *index, *subCmd;
Tcl_Obj **varPtr;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetBooleanFromObj(interp, objv[3], &boolValue) != TCL_OK) {
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared),
* we must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBooleanObj(varPtr[varIndex], boolValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBooleanObj(boolValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "not") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, varPtr[varIndex],
&boolValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBooleanObj(varPtr[varIndex], !boolValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBooleanObj(!boolValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, or not", NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestdoubleobjCmd --
*
* This function implements the "testdoubleobj" command. It is used to
* test the double-precision floating point Tcl object type
* implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees double objects, and also converts objects to
* have double type.
*
*----------------------------------------------------------------------
*/
static int
TestdoubleobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int varIndex;
double doubleValue;
const char *index, *subCmd, *string;
Tcl_Obj **varPtr;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetDouble(interp, string, &doubleValue) != TCL_OK) {
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared), we
* must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetDoubleObj(varPtr[varIndex], doubleValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewDoubleObj(doubleValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "mult10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetDoubleFromObj(interp, varPtr[varIndex],
&doubleValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetDoubleObj(varPtr[varIndex], doubleValue * 10.0);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewDoubleObj(doubleValue * 10.0));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "div10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetDoubleFromObj(interp, varPtr[varIndex],
&doubleValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetDoubleObj(varPtr[varIndex], doubleValue / 10.0);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewDoubleObj(doubleValue / 10.0));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, mult10, or div10", NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestindexobjCmd --
*
* This function implements the "testindexobj" command. It is used to
* test the index Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees int objects, and also converts objects to
* have int type.
*
*----------------------------------------------------------------------
*/
static int
TestindexobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int allowAbbrev, index, index2, setError, i, result;
const char **argv;
static const char *const tablePtr[] = {"a", "b", "check", NULL};
/*
* Keep this structure declaration in sync with tclIndexObj.c
*/
struct IndexRep {
void *tablePtr; /* Pointer to the table of strings. */
int offset; /* Offset between table entries. */
int index; /* Selected index into table. */
};
struct IndexRep *indexRep;
if ((objc == 3) && (strcmp(Tcl_GetString(objv[1]),
"check") == 0)) {
/*
* This code checks to be sure that the results of Tcl_GetIndexFromObj
* are properly cached in the object and returned on subsequent
* lookups.
*/
if (Tcl_GetIntFromObj(interp, objv[2], &index2) != TCL_OK) {
return TCL_ERROR;
}
Tcl_GetIndexFromObj(NULL, objv[1], tablePtr, "token", 0, &index);
indexRep = objv[1]->internalRep.twoPtrValue.ptr1;
indexRep->index = index2;
result = Tcl_GetIndexFromObj(NULL, objv[1],
tablePtr, "token", 0, &index);
if (result == TCL_OK) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), index);
}
return result;
}
if (objc < 5) {
Tcl_AppendToObj(Tcl_GetObjResult(interp), "wrong # args", -1);
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, objv[1], &setError) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, objv[2], &allowAbbrev) != TCL_OK) {
return TCL_ERROR;
}
argv = ckalloc((objc-3) * sizeof(char *));
for (i = 4; i < objc; i++) {
argv[i-4] = Tcl_GetString(objv[i]);
}
argv[objc-4] = NULL;
/*
* Tcl_GetIndexFromObj assumes that the table is statically-allocated so
* that its address is different for each index object. If we accidently
* allocate a table at the same address as that cached in the index
* object, clear out the object's cached state.
*/
if (objv[3]->typePtr != NULL
&& !strcmp("index", objv[3]->typePtr->name)) {
indexRep = objv[3]->internalRep.twoPtrValue.ptr1;
if (indexRep->tablePtr == (void *) argv) {
TclFreeIntRep(objv[3]);
}
}
result = Tcl_GetIndexFromObj((setError? interp : NULL), objv[3],
argv, "token", (allowAbbrev? 0 : TCL_EXACT), &index);
ckfree(argv);
if (result == TCL_OK) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), index);
}
return result;
}
/*
*----------------------------------------------------------------------
*
* TestintobjCmd --
*
* This function implements the "testintobj" command. It is used to
* test the int Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees int objects, and also converts objects to
* have int type.
*
*----------------------------------------------------------------------
*/
static int
TestintobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int intValue, varIndex, i;
long longValue;
const char *index, *subCmd, *string;
Tcl_Obj **varPtr;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetInt(interp, string, &i) != TCL_OK) {
return TCL_ERROR;
}
intValue = i;
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared), we
* must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewIntObj(intValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "set2") == 0) { /* doesn't set result */
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetInt(interp, string, &i) != TCL_OK) {
return TCL_ERROR;
}
intValue = i;
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewIntObj(intValue));
}
} else if (strcmp(subCmd, "setlong") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
string = Tcl_GetString(objv[3]);
if (Tcl_GetInt(interp, string, &i) != TCL_OK) {
return TCL_ERROR;
}
intValue = i;
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetLongObj(varPtr[varIndex], intValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewLongObj(intValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "setmaxlong") == 0) {
long maxLong = LONG_MAX;
if (objc != 3) {
goto wrongNumArgs;
}
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetLongObj(varPtr[varIndex], maxLong);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewLongObj(maxLong));
}
} else if (strcmp(subCmd, "ismaxlong") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetLongFromObj(interp, varPtr[varIndex], &longValue) != TCL_OK) {
return TCL_ERROR;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp),
((longValue == LONG_MAX)? "1" : "0"), -1);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get2") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(varPtr[varIndex]);
Tcl_AppendToObj(Tcl_GetObjResult(interp), string, -1);
} else if (strcmp(subCmd, "inttoobigtest") == 0) {
/*
* If long ints have more bits than ints on this platform, verify that
* Tcl_GetIntFromObj returns an error if the long int held in an
* integer object's internal representation is too large to fit in an
* int.
*/
if (objc != 3) {
goto wrongNumArgs;
}
#if (INT_MAX == LONG_MAX) /* int is same size as long int */
Tcl_AppendToObj(Tcl_GetObjResult(interp), "1", -1);
#else
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetLongObj(varPtr[varIndex], LONG_MAX);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewLongObj(LONG_MAX));
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex], &i) != TCL_OK) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), "1", -1);
return TCL_OK;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp), "0", -1);
#endif
} else if (strcmp(subCmd, "mult10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex],
&intValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue * 10);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewIntObj(intValue * 10));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "div10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex],
&intValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetIntObj(varPtr[varIndex], intValue / 10);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewIntObj(intValue / 10));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, get2, mult10, or div10", NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*-----------------------------------------------------------------------------
*
* TestlistobjCmd --
*
* This function implements the 'testlistobj' command. It is used to
* test a few possible corner cases in list object manipulation from
* C code that cannot occur at the Tcl level.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates, manipulates and frees list objects.
*
*-----------------------------------------------------------------------------
*/
static int
TestlistobjCmd(
ClientData clientData, /* Not used */
Tcl_Interp *interp, /* Tcl interpreter */
int objc, /* Number of arguments */
Tcl_Obj *const objv[]) /* Argument objects */
{
/* Subcommands supported by this command */
const char* subcommands[] = {
"set",
"get",
"replace"
};
enum listobjCmdIndex {
LISTOBJ_SET,
LISTOBJ_GET,
LISTOBJ_REPLACE
};
const char* index; /* Argument giving the variable number */
int varIndex; /* Variable number converted to binary */
int cmdIndex; /* Ordinal number of the subcommand */
int first; /* First index in the list */
int count; /* Count of elements in a list */
Tcl_Obj **varPtr;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], subcommands, "command",
0, &cmdIndex) != TCL_OK) {
return TCL_ERROR;
}
switch(cmdIndex) {
case LISTOBJ_SET:
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetListObj(varPtr[varIndex], objc-3, objv+3);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewListObj(objc-3, objv+3));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case LISTOBJ_GET:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case LISTOBJ_REPLACE:
if (objc < 5) {
Tcl_WrongNumArgs(interp, 2, objv,
"varIndex start count ?element...?");
return TCL_ERROR;
}
if (Tcl_GetIntFromObj(interp, objv[3], &first) != TCL_OK
|| Tcl_GetIntFromObj(interp, objv[4], &count) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
Tcl_ResetResult(interp);
return Tcl_ListObjReplace(interp, varPtr[varIndex], first, count,
objc-5, objv+5);
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestobjCmd --
*
* This function implements the "testobj" command. It is used to test
* the type-independent portions of the Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees objects.
*
*----------------------------------------------------------------------
*/
static int
TestobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int varIndex, destIndex, i;
const char *index, *subCmd, *string;
const Tcl_ObjType *targetType;
Tcl_Obj **varPtr;
if (objc < 2) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "assign") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(objv[3]);
if (GetVariableIndex(interp, string, &destIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, destIndex, varPtr[varIndex]);
Tcl_SetObjResult(interp, varPtr[destIndex]);
} else if (strcmp(subCmd, "bug3598580") == 0) {
Tcl_Obj *listObjPtr, *elemObjPtr;
if (objc != 2) {
goto wrongNumArgs;
}
elemObjPtr = Tcl_NewIntObj(123);
listObjPtr = Tcl_NewListObj(1, &elemObjPtr);
/* Replace the single list element through itself, nonsense but legal. */
Tcl_ListObjReplace(interp, listObjPtr, 0, 1, 1, &elemObjPtr);
Tcl_SetObjResult(interp, listObjPtr);
return TCL_OK;
} else if (strcmp(subCmd, "convert") == 0) {
const char *typeName;
if (objc != 4) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
typeName = Tcl_GetString(objv[3]);
if ((targetType = Tcl_GetObjType(typeName)) == NULL) {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"no type ", typeName, " found", NULL);
return TCL_ERROR;
}
if (Tcl_ConvertToType(interp, varPtr[varIndex], targetType)
!= TCL_OK) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "duplicate") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(objv[3]);
if (GetVariableIndex(interp, string, &destIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, destIndex, Tcl_DuplicateObj(varPtr[varIndex]));
Tcl_SetObjResult(interp, varPtr[destIndex]);
} else if (strcmp(subCmd, "freeallvars") == 0) {
if (objc != 2) {
goto wrongNumArgs;
}
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
if (varPtr[i] != NULL) {
Tcl_DecrRefCount(varPtr[i]);
varPtr[i] = NULL;
}
}
} else if (strcmp(subCmd, "invalidateStringRep") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_InvalidateStringRep(varPtr[varIndex]);
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "newobj") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "objtype") == 0) {
const char *typeName;
/*
* Return an object containing the name of the argument's type of
* internal rep. If none exists, return "none".
*/
if (objc != 3) {
goto wrongNumArgs;
}
if (objv[2]->typePtr == NULL) {
Tcl_SetObjResult(interp, Tcl_NewStringObj("none", -1));
} else {
typeName = objv[2]->typePtr->name;
Tcl_SetObjResult(interp, Tcl_NewStringObj(typeName, -1));
}
} else if (strcmp(subCmd, "refcount") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, Tcl_NewIntObj(varPtr[varIndex]->refCount));
} else if (strcmp(subCmd, "type") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (varPtr[varIndex]->typePtr == NULL) { /* a string! */
Tcl_AppendToObj(Tcl_GetObjResult(interp), "string", -1);
} else {
Tcl_AppendToObj(Tcl_GetObjResult(interp),
varPtr[varIndex]->typePtr->name, -1);
}
} else if (strcmp(subCmd, "types") == 0) {
if (objc != 2) {
goto wrongNumArgs;
}
if (Tcl_AppendAllObjTypes(interp,
Tcl_GetObjResult(interp)) != TCL_OK) {
return TCL_ERROR;
}
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be assign, convert, duplicate, freeallvars, "
"newobj, objcount, objtype, refcount, type, or types", NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TeststringobjCmd --
*
* This function implements the "teststringobj" command. It is used to
* test the string Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees string objects, and also converts objects to
* have string type.
*
*----------------------------------------------------------------------
*/
static int
TeststringobjCmd(
ClientData clientData, /* Not used. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_UniChar *unicode;
int varIndex, option, i, length;
#define MAX_STRINGS 11
const char *index, *string, *strings[MAX_STRINGS+1];
String *strPtr;
Tcl_Obj **varPtr;
static const char *const options[] = {
"append", "appendstrings", "get", "get2", "length", "length2",
"set", "set2", "setlength", "maxchars", "getunicode",
"appendself", "appendself2", NULL
};
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
index = Tcl_GetString(objv[2]);
if (GetVariableIndex(interp, index, &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], options, "option", 0, &option)
!= TCL_OK) {
return TCL_ERROR;
}
switch (option) {
case 0: /* append */
if (objc != 5) {
goto wrongNumArgs;
}
if (Tcl_GetIntFromObj(interp, objv[4], &length) != TCL_OK) {
return TCL_ERROR;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
string = Tcl_GetString(objv[3]);
Tcl_AppendToObj(varPtr[varIndex], string, length);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 1: /* appendstrings */
if (objc > (MAX_STRINGS+3)) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
for (i = 3; i < objc; i++) {
strings[i-3] = Tcl_GetString(objv[i]);
}
for ( ; i < 12 + 3; i++) {
strings[i - 3] = NULL;
}
Tcl_AppendStringsToObj(varPtr[varIndex], strings[0], strings[1],
strings[2], strings[3], strings[4], strings[5],
strings[6], strings[7], strings[8], strings[9],
strings[10], strings[11]);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 2: /* get */
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 3: /* get2 */
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr, varIndex)) {
return TCL_ERROR;
}
string = Tcl_GetString(varPtr[varIndex]);
Tcl_AppendToObj(Tcl_GetObjResult(interp), string, -1);
break;
case 4: /* length */
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_SetIntObj(Tcl_GetObjResult(interp), (varPtr[varIndex] != NULL)
? varPtr[varIndex]->length : -1);
break;
case 5: /* length2 */
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex] != NULL) {
Tcl_ConvertToType(NULL, varPtr[varIndex],
Tcl_GetObjType("string"));
strPtr = varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
length = (int) strPtr->allocated;
} else {
length = -1;
}
Tcl_SetIntObj(Tcl_GetObjResult(interp), length);
break;
case 6: /* set */
if (objc != 4) {
goto wrongNumArgs;
}
/*
* If the object currently bound to the variable with index
* varIndex has ref count 1 (i.e. the object is unshared) we can
* modify that object directly. Otherwise, if RC>1 (i.e. the
* object is shared), we must create a new object to modify/set
* and decrement the old formerly-shared object's ref count. This
* is "copy on write".
*/
string = Tcl_GetStringFromObj(objv[3], &length);
if ((varPtr[varIndex] != NULL)
&& !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetStringObj(varPtr[varIndex], string, length);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewStringObj(string, length));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 7: /* set2 */
if (objc != 4) {
goto wrongNumArgs;
}
SetVarToObj(varPtr, varIndex, objv[3]);
break;
case 8: /* setlength */
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetIntFromObj(interp, objv[3], &length) != TCL_OK) {
return TCL_ERROR;
}
if (varPtr[varIndex] != NULL) {
Tcl_SetObjLength(varPtr[varIndex], length);
}
break;
case 9: /* maxchars */
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex] != NULL) {
Tcl_ConvertToType(NULL, varPtr[varIndex],
Tcl_GetObjType("string"));
strPtr = varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
length = strPtr->maxChars;
} else {
length = -1;
}
Tcl_SetIntObj(Tcl_GetObjResult(interp), length);
break;
case 10: /* getunicode */
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_GetUnicodeFromObj(varPtr[varIndex], NULL);
break;
case 11: /* appendself */
if (objc != 4) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
string = Tcl_GetStringFromObj(varPtr[varIndex], &length);
if (Tcl_GetIntFromObj(interp, objv[3], &i) != TCL_OK) {
return TCL_ERROR;
}
if ((i < 0) || (i > length)) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"index value out of range", -1));
return TCL_ERROR;
}
Tcl_AppendToObj(varPtr[varIndex], string + i, length - i);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 12: /* appendself2 */
if (objc != 4) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
unicode = Tcl_GetUnicodeFromObj(varPtr[varIndex], &length);
if (Tcl_GetIntFromObj(interp, objv[3], &i) != TCL_OK) {
return TCL_ERROR;
}
if ((i < 0) || (i > length)) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"index value out of range", -1));
return TCL_ERROR;
}
Tcl_AppendUnicodeToObj(varPtr[varIndex], unicode + i, length - i);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* SetVarToObj --
*
* Utility routine to assign a Tcl_Obj* to a test variable. The
* Tcl_Obj* can be NULL.
*
* Results:
* None.
*
* Side effects:
* This routine handles ref counting details for assignment: i.e. the old
* value's ref count must be decremented (if not NULL) and the new one
* incremented (also if not NULL).
*
*----------------------------------------------------------------------
*/
static void
SetVarToObj(
Tcl_Obj **varPtr,
int varIndex, /* Designates the assignment variable. */
Tcl_Obj *objPtr) /* Points to object to assign to var. */
{
if (varPtr[varIndex] != NULL) {
Tcl_DecrRefCount(varPtr[varIndex]);
}
varPtr[varIndex] = objPtr;
if (objPtr != NULL) {
Tcl_IncrRefCount(objPtr);
}
}
/*
*----------------------------------------------------------------------
*
* GetVariableIndex --
*
* Utility routine to get a test variable index from the command line.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static int
GetVariableIndex(
Tcl_Interp *interp, /* Interpreter for error reporting. */
const char *string, /* String containing a variable index
* specified as a nonnegative number less than
* NUMBER_OF_OBJECT_VARS. */
int *indexPtr) /* Place to store converted result. */
{
int index;
if (Tcl_GetInt(interp, string, &index) != TCL_OK) {
return TCL_ERROR;
}
if (index < 0 || index >= NUMBER_OF_OBJECT_VARS) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), "bad variable index", -1);
return TCL_ERROR;
}
*indexPtr = index;
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* CheckIfVarUnset --
*
* Utility function that checks whether a test variable is readable:
* i.e., that varPtr[varIndex] is non-NULL.
*
* Results:
* 1 if the test variable is unset (NULL); 0 otherwise.
*
* Side effects:
* Sets the interpreter result to an error message if the variable is
* unset (NULL).
*
*----------------------------------------------------------------------
*/
static int
CheckIfVarUnset(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tcl_Obj ** varPtr,
int varIndex) /* Index of the test variable to check. */
{
if (varPtr[varIndex] == NULL) {
char buf[32 + TCL_INTEGER_SPACE];
sprintf(buf, "variable %d is unset (NULL)", varIndex);
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), buf, -1);
return 1;
}
return 0;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/