diff options
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tclCompCmds.c | 211 |
1 files changed, 209 insertions, 2 deletions
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c index b664e0b..f4b5db0 100644 --- a/generic/tclCompCmds.c +++ b/generic/tclCompCmds.c @@ -12,7 +12,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclCompCmds.c,v 1.88 2006/11/23 22:38:45 dkf Exp $ + * RCS: @(#) $Id: tclCompCmds.c,v 1.89 2006/11/23 23:48:45 dkf Exp $ */ #include "tclInt.h" @@ -4770,6 +4770,11 @@ TclMinusOpCmd( int objc, Tcl_Obj *const objv[]) { + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, "value ?value ...?"); + return TCL_ERROR; + } + Tcl_AppendResult(interp, "not yet implemented", NULL); return TCL_ERROR; } @@ -4807,6 +4812,11 @@ TclDivOpCmd( int objc, Tcl_Obj *const objv[]) { + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, "value ?value ...?"); + return TCL_ERROR; + } + Tcl_AppendResult(interp, "not yet implemented", NULL); return TCL_ERROR; } @@ -4846,6 +4856,11 @@ TclLshiftOpCmd( int objc, Tcl_Obj *const objv[]) { + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "value value"); + return TCL_ERROR; + } + Tcl_AppendResult(interp, "not yet implemented", NULL); return TCL_ERROR; } @@ -4876,6 +4891,11 @@ TclRshiftOpCmd( int objc, Tcl_Obj *const objv[]) { + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "value value"); + return TCL_ERROR; + } + Tcl_AppendResult(interp, "not yet implemented", NULL); return TCL_ERROR; } @@ -4906,7 +4926,193 @@ TclModOpCmd( int objc, Tcl_Obj *const objv[]) { - Tcl_AppendResult(interp, "not yet implemented", NULL); + Tcl_Obj *argObj; + ClientData ptr1, ptr2; + int type1, type2; + long l1, l2 = 0; + const char *description; + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "value value"); + return TCL_ERROR; + } + + if ((TclGetNumberFromObj(NULL, objv[1], &ptr1, &type1) != TCL_OK) + || (type1 == TCL_NUMBER_DOUBLE) || (type1 == TCL_NUMBER_NAN)) { + argObj = objv[1]; + goto badArg; + } + if ((TclGetNumberFromObj(NULL, objv[2], &ptr2, &type2) != TCL_OK) + || (type2 == TCL_NUMBER_DOUBLE) || (type2 == TCL_NUMBER_NAN)) { + argObj = objv[2]; + goto badArg; + } + + if (type2 == TCL_NUMBER_LONG) { + l2 = *((CONST long *)ptr2); + if (l2 == 0) { + Tcl_SetObjResult(interp, Tcl_NewStringObj("divide by zero", -1)); + Tcl_SetErrorCode(interp, "ARITH", "DIVZERO", "divide by zero", + NULL); + return TCL_ERROR; + } + if ((l2 == 1) || (l2 == -1)) { + Tcl_SetIntObj(Tcl_GetObjResult(interp), 0); + return TCL_OK; + } + } + if (type1 == TCL_NUMBER_LONG) { + l1 = *((CONST long *)ptr1); + if (l1 == 0) { + Tcl_SetIntObj(Tcl_GetObjResult(interp), 0); + return TCL_OK; + } + if (type2 == TCL_NUMBER_LONG) { + /* Both operands are long; do native calculation */ + long lRemainder, lQuotient = l1 / l2; + + /* Force Tcl's integer division rules */ + /* TODO: examine for logic simplification */ + if (((lQuotient < 0) || ((lQuotient == 0) && + ((l1 < 0 && l2 > 0) || (l1 > 0 && l2 < 0)))) && + ((lQuotient * l2) != l1)) { + lQuotient -= 1; + } + lRemainder = l1 - l2*lQuotient; + Tcl_SetLongObj(Tcl_GetObjResult(interp), lRemainder); + return TCL_OK; + } + /* + * First operand fits in long; second does not, so the second has + * greater magnitude than first. No need to divide to determine the + * remainder. + */ +#ifndef NO_WIDE_TYPE + if (type2 == TCL_NUMBER_WIDE) { + Tcl_WideInt w2 = *((CONST Tcl_WideInt *)ptr2); + + if ((l1 > 0) ^ (w2 > (Tcl_WideInt)0)) { + /* Arguments are opposite sign; remainder is sum */ + Tcl_SetObjResult(interp, + Tcl_NewWideIntObj(w2+(Tcl_WideInt)l1)); + return TCL_OK; + } + /* Arguments are same sign; remainder is first operand */ + Tcl_SetObjResult(interp, objv[1]); + return TCL_OK; + } +#endif + { + mp_int big2; + if (Tcl_IsShared(objv[2])) { + Tcl_GetBignumFromObj(NULL, objv[2], &big2); + } else { + Tcl_GetBignumAndClearObj(NULL, objv[2], &big2); + } + + /* TODO: internals intrusion */ + if ((l1 > 0) ^ (big2.sign == MP_ZPOS)) { + /* Arguments are opposite sign; remainder is sum */ + mp_int big1; + TclBNInitBignumFromLong(&big1, l1); + mp_add(&big2, &big1, &big2); + Tcl_SetObjResult(interp, Tcl_NewBignumObj(&big2)); + } else { + /* Arguments are same sign; remainder is first operand */ + Tcl_SetObjResult(interp, objv[1]); + /* TODO: free big2? */ + } + } + return TCL_OK; + } +#ifndef NO_WIDE_TYPE + if (type1 == TCL_NUMBER_WIDE) { + Tcl_WideInt w1 = *((CONST Tcl_WideInt *)ptr1); + if (type2 != TCL_NUMBER_BIG) { + Tcl_WideInt w2, wQuotient, wRemainder; + + Tcl_GetWideIntFromObj(NULL, objv[2], &w2); + wQuotient = w1 / w2; + + /* Force Tcl's integer division rules */ + /* TODO: examine for logic simplification */ + if (((wQuotient < ((Tcl_WideInt) 0)) + || ((wQuotient == ((Tcl_WideInt) 0)) && ( + (w1 < ((Tcl_WideInt) 0) && w2 > ((Tcl_WideInt) 0)) + || (w1 > ((Tcl_WideInt) 0) && w2 < ((Tcl_WideInt) 0))) + )) && ((wQuotient * w2) != w1)) { + wQuotient -= (Tcl_WideInt) 1; + } + wRemainder = w1 - w2*wQuotient; + Tcl_SetObjResult(interp, Tcl_NewWideIntObj(wRemainder)); + } else { + mp_int big2; + if (Tcl_IsShared(objv[2])) { + Tcl_GetBignumFromObj(NULL, objv[2], &big2); + } else { + Tcl_GetBignumAndClearObj(NULL, objv[2], &big2); + } + + /* TODO: internals intrusion */ + if ((w1 > ((Tcl_WideInt) 0)) ^ (big2.sign == MP_ZPOS)) { + /* Arguments are opposite sign; remainder is sum */ + mp_int big1; + TclBNInitBignumFromWideInt(&big1, w1); + mp_add(&big2, &big1, &big2); + Tcl_SetObjResult(interp, Tcl_NewBignumObj(&big2)); + } else { + /* Arguments are same sign; remainder is first operand */ + Tcl_SetObjResult(interp, objv[1]); + } + } + return TCL_OK; + } +#endif + { + mp_int big1, big2, bigResult, bigRemainder; + + Tcl_GetBignumFromObj(NULL, objv[1], &big1); + Tcl_GetBignumFromObj(NULL, objv[2], &big2); + mp_init(&bigResult); + mp_init(&bigRemainder); + mp_div(&big1, &big2, &bigResult, &bigRemainder); + if (!mp_iszero(&bigRemainder) && (bigRemainder.sign != big2.sign)) { + /* Convert to Tcl's integer division rules */ + mp_sub_d(&bigResult, 1, &bigResult); + mp_add(&bigRemainder, &big2, &bigRemainder); + } + mp_copy(&bigRemainder, &bigResult); + mp_clear(&bigRemainder); + mp_clear(&big1); + mp_clear(&big2); + if (Tcl_IsShared(objv[1])) { + Tcl_SetObjResult(interp, Tcl_NewBignumObj(&bigResult)); + } else { + Tcl_SetBignumObj(objv[1], &bigResult); + Tcl_SetObjResult(interp, objv[1]); + } + return TCL_OK; + } + + badArg: + if (TclGetNumberFromObj(NULL, argObj, &ptr1, &type1) != TCL_OK) { + int numBytes; + CONST char *bytes = Tcl_GetStringFromObj(argObj, &numBytes); + if (numBytes == 0) { + description = "empty string"; + } else if (TclCheckBadOctal(NULL, bytes)) { + description = "invalid octal number"; + } else { + description = "non-numeric string"; + } + } else if (type1 == TCL_NUMBER_NAN) { + description = "non-numeric floating-point value"; + } else { + description = "floating-point value"; + } + + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't use %s as operand of \"%%\"", description)); return TCL_ERROR; } @@ -4938,6 +5144,7 @@ TclNeqOpCmd( { int result = 1, cmp, len1, len2; const char *str1, *str2; + if (objc != 3) { Tcl_WrongNumArgs(interp, 1, objv, "value value"); return TCL_ERROR; |