diff options
| -rw-r--r-- | generic/tclBasic.c | 69 | ||||
| -rw-r--r-- | generic/tclExecute.c | 2 | ||||
| -rw-r--r-- | generic/tclInt.h | 2 | ||||
| -rw-r--r-- | library/init.tcl | 37 |
4 files changed, 71 insertions, 39 deletions
diff --git a/generic/tclBasic.c b/generic/tclBasic.c index fe29db0..9f62608 100644 --- a/generic/tclBasic.c +++ b/generic/tclBasic.c @@ -118,6 +118,8 @@ static Tcl_ObjCmdProc ExprEntierFunc; static Tcl_ObjCmdProc ExprFloorFunc; static Tcl_ObjCmdProc ExprIntFunc; static Tcl_ObjCmdProc ExprIsqrtFunc; +static Tcl_ObjCmdProc ExprMaxFunc; +static Tcl_ObjCmdProc ExprMinFunc; static Tcl_ObjCmdProc ExprRandFunc; static Tcl_ObjCmdProc ExprRoundFunc; static Tcl_ObjCmdProc ExprSqrtFunc; @@ -321,6 +323,8 @@ static const BuiltinFuncDef BuiltinFuncTable[] = { { "isqrt", ExprIsqrtFunc, NULL }, { "log", ExprUnaryFunc, (ClientData) log }, { "log10", ExprUnaryFunc, (ClientData) log10 }, + { "max", ExprMaxFunc, NULL }, + { "min", ExprMinFunc, NULL }, { "pow", ExprBinaryFunc, (ClientData) pow }, { "rand", ExprRandFunc, NULL }, { "round", ExprRoundFunc, NULL }, @@ -7699,6 +7703,71 @@ ExprWideFunc( return TCL_OK; } +/* + * Common implmentation of max() and min(). + */ +static int +ExprMaxMinFunc( + ClientData clientData, /* Ignored. */ + Tcl_Interp *interp, /* The interpreter in which to execute the + * function. */ + int objc, /* Actual parameter count. */ + Tcl_Obj *const *objv, /* Actual parameter vector. */ + int op) /* Comparison direction */ +{ + Tcl_Obj *res; + double d; + int type, i; + ClientData ptr; + + if (objc < 2) { + MathFuncWrongNumArgs(interp, 2, objc, objv); + return TCL_ERROR; + } + res = objv[1]; + for (i = 1; i < objc; i++) { + if (TclGetNumberFromObj(interp, objv[i], &ptr, &type) != TCL_OK) { + return TCL_ERROR; + } + if (type == TCL_NUMBER_NAN) { + /* + * Get the error message for NaN. + */ + + Tcl_GetDoubleFromObj(interp, objv[i], &d); + return TCL_ERROR; + } + if (TclCompareTwoNumbers(objv[i], res) == op) { + res = objv[i]; + } + } + + Tcl_SetObjResult(interp, res); + return TCL_OK; +} + +static int +ExprMaxFunc( + ClientData clientData, /* Ignored. */ + Tcl_Interp *interp, /* The interpreter in which to execute the + * function. */ + int objc, /* Actual parameter count. */ + Tcl_Obj *const *objv) /* Actual parameter vector. */ +{ + return ExprMaxMinFunc(clientData, interp, objc, objv, MP_GT); +} + +static int +ExprMinFunc( + ClientData clientData, /* Ignored. */ + Tcl_Interp *interp, /* The interpreter in which to execute the + * function. */ + int objc, /* Actual parameter count. */ + Tcl_Obj *const *objv) /* Actual parameter vector. */ +{ + return ExprMaxMinFunc(clientData, interp, objc, objv, MP_LT); +} + static int ExprRandFunc( ClientData clientData, /* Ignored. */ diff --git a/generic/tclExecute.c b/generic/tclExecute.c index 54c73fd..95664d0 100644 --- a/generic/tclExecute.c +++ b/generic/tclExecute.c @@ -744,8 +744,6 @@ static ByteCode * CompileExprObj(Tcl_Interp *interp, Tcl_Obj *objPtr); static void DeleteExecStack(ExecStack *esPtr); static void DupExprCodeInternalRep(Tcl_Obj *srcPtr, Tcl_Obj *copyPtr); -MODULE_SCOPE int TclCompareTwoNumbers(Tcl_Obj *valuePtr, - Tcl_Obj *value2Ptr); static Tcl_Obj * ExecuteExtendedBinaryMathOp(Tcl_Interp *interp, int opcode, Tcl_Obj **constants, Tcl_Obj *valuePtr, Tcl_Obj *value2Ptr); diff --git a/generic/tclInt.h b/generic/tclInt.h index 23a20e6..3889d39 100644 --- a/generic/tclInt.h +++ b/generic/tclInt.h @@ -2908,6 +2908,8 @@ MODULE_SCOPE int TclChanCaughtErrorBypass(Tcl_Interp *interp, Tcl_Channel chan); MODULE_SCOPE Tcl_ObjCmdProc TclChannelNamesCmd; MODULE_SCOPE Tcl_NRPostProc TclClearRootEnsemble; +MODULE_SCOPE int TclCompareTwoNumbers(Tcl_Obj *valuePtr, + Tcl_Obj *value2Ptr); MODULE_SCOPE ContLineLoc *TclContinuationsEnter(Tcl_Obj *objPtr, int num, int *loc); MODULE_SCOPE void TclContinuationsEnterDerived(Tcl_Obj *objPtr, diff --git a/library/init.tcl b/library/init.tcl index 13a4300..4424087 100644 --- a/library/init.tcl +++ b/library/init.tcl @@ -73,43 +73,6 @@ namespace eval tcl { encoding dirs $Path } } - - # TIP #255 min and max functions - namespace eval mathfunc { - proc min {args} { - if {![llength $args]} { - return -code error \ - "too few arguments for math function \"min\"" - } - set val Inf - foreach arg $args { - # This will handle forcing the numeric value without - # ruining the internal type of a numeric object - if {[catch {expr {double($arg)}} err]} { - return -code error $err - } - if {$arg < $val} {set val $arg} - } - return $val - } - proc max {args} { - if {![llength $args]} { - return -code error \ - "too few arguments for math function \"max\"" - } - set val -Inf - foreach arg $args { - # This will handle forcing the numeric value without - # ruining the internal type of a numeric object - if {[catch {expr {double($arg)}} err]} { - return -code error $err - } - if {$arg > $val} {set val $arg} - } - return $val - } - namespace export min max - } } namespace eval tcl::Pkg {} |