diff options
Diffstat (limited to 'tcl8.6/generic/tclTestObj.c')
| -rw-r--r-- | tcl8.6/generic/tclTestObj.c | 1495 |
1 files changed, 0 insertions, 1495 deletions
diff --git a/tcl8.6/generic/tclTestObj.c b/tcl8.6/generic/tclTestObj.c deleted file mode 100644 index a637498..0000000 --- a/tcl8.6/generic/tclTestObj.c +++ /dev/null @@ -1,1495 +0,0 @@ -/* - * 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) -{ - register 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) -{ - register 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 implmenets 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", NULL - }; - enum options { - BIGNUM_SET, BIGNUM_GET, BIGNUM_MULT10, BIGNUM_DIV10 - }; - int index, varIndex; - const char *string; - mp_int bignumValue, newValue; - 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_init(&newValue) != MP_OKAY - || (mp_mul_d(&bignumValue, 10, &newValue) != MP_OKAY)) { - mp_clear(&bignumValue); - mp_clear(&newValue); - Tcl_SetObjResult(interp, - Tcl_NewStringObj("error in mp_mul_d", -1)); - return TCL_ERROR; - } - mp_clear(&bignumValue); - if (!Tcl_IsShared(varPtr[varIndex])) { - Tcl_SetBignumObj(varPtr[varIndex], &newValue); - } else { - SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&newValue)); - } - 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_init(&newValue) != MP_OKAY - || (mp_div_d(&bignumValue, 10, &newValue, NULL) != MP_OKAY)) { - mp_clear(&bignumValue); - mp_clear(&newValue); - Tcl_SetObjResult(interp, - Tcl_NewStringObj("error in mp_div_d", -1)); - return TCL_ERROR; - } - mp_clear(&bignumValue); - if (!Tcl_IsShared(varPtr[varIndex])) { - Tcl_SetBignumObj(varPtr[varIndex], &newValue); - } else { - SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&newValue)); - } - } - - 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: - */ |