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-rw-r--r--generic/tclTest.c105
1 files changed, 104 insertions, 1 deletions
diff --git a/generic/tclTest.c b/generic/tclTest.c
index b845d72..80dbbae 100644
--- a/generic/tclTest.c
+++ b/generic/tclTest.c
@@ -14,9 +14,11 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclTest.c,v 1.154 2010/09/27 19:42:38 msofer Exp $
+ * RCS: @(#) $Id: tclTest.c,v 1.155 2010/11/28 23:20:11 kennykb Exp $
*/
+#include <math.h>
+
#undef STATIC_BUILD
#ifndef USE_TCL_STUBS
# define USE_TCL_STUBS
@@ -233,6 +235,9 @@ static int TestdelCmd(ClientData dummy,
Tcl_Interp *interp, int argc, const char **argv);
static int TestdelassocdataCmd(ClientData dummy,
Tcl_Interp *interp, int argc, const char **argv);
+static int TestdoubledigitsObjCmd(ClientData dummy,
+ Tcl_Interp* interp,
+ int objc, Tcl_Obj* const objv[]);
static int TestdstringCmd(ClientData dummy,
Tcl_Interp *interp, int argc, const char **argv);
static int TestencodingObjCmd(ClientData dummy,
@@ -569,6 +574,8 @@ Tcltest_Init(
Tcl_CreateCommand(interp, "testdel", TestdelCmd, NULL, NULL);
Tcl_CreateCommand(interp, "testdelassocdata", TestdelassocdataCmd,
NULL, NULL);
+ Tcl_CreateObjCommand(interp, "testdoubledigits", TestdoubledigitsObjCmd,
+ NULL, NULL);
Tcl_DStringInit(&dstring);
Tcl_CreateCommand(interp, "testdstring", TestdstringCmd, NULL,
NULL);
@@ -1594,6 +1601,102 @@ TestdelassocdataCmd(
}
/*
+ *-----------------------------------------------------------------------------
+ *
+ * TestdoubledigitsCmd --
+ *
+ * This procedure implements the 'testdoubledigits' command. It is
+ * used to test the low-level floating-point formatting primitives
+ * in Tcl.
+ *
+ * Usage:
+ * testdoubledigits fpval ndigits type ?shorten"
+ *
+ * Parameters:
+ * fpval - Floating-point value to format.
+ * ndigits - Digit count to request from Tcl_DoubleDigits
+ * type - One of 'shortest', 'Steele', 'e', 'f'
+ * shorten - Indicates that the 'shorten' flag should be passed in.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static int
+TestdoubledigitsObjCmd(ClientData unused,
+ /* NULL */
+ Tcl_Interp* interp,
+ /* Tcl interpreter */
+ int objc,
+ /* Parameter count */
+ Tcl_Obj* const objv[])
+ /* Parameter vector */
+{
+ static const char* options[] = {
+ "shortest",
+ "Steele",
+ "e",
+ "f",
+ NULL
+ };
+ static const int types[] = {
+ TCL_DD_SHORTEST,
+ TCL_DD_STEELE,
+ TCL_DD_E_FORMAT,
+ TCL_DD_F_FORMAT
+ };
+
+ const Tcl_ObjType* doubleType;
+ double d;
+ int status;
+ int ndigits;
+ int type;
+ int decpt;
+ int signum;
+ char* str;
+ char* endPtr;
+ Tcl_Obj* strObj;
+ Tcl_Obj* retval;
+
+ if (objc < 4 || objc > 5) {
+ Tcl_WrongNumArgs(interp, 1, objv, "fpval ndigits type ?shorten?");
+ return TCL_ERROR;
+ }
+ status = Tcl_GetDoubleFromObj(interp, objv[1], &d);
+ if (status != TCL_OK) {
+ doubleType = Tcl_GetObjType("double");
+ if (objv[1]->typePtr == doubleType
+ || TclIsNaN(objv[1]->internalRep.doubleValue)) {
+ status = TCL_OK;
+ memcpy(&d, &(objv[1]->internalRep.doubleValue), sizeof(double));
+ }
+ }
+ if (status != TCL_OK
+ || Tcl_GetIntFromObj(interp, objv[2], &ndigits) != TCL_OK
+ || Tcl_GetIndexFromObj(interp, objv[3], options, "conversion type",
+ TCL_EXACT, &type) != TCL_OK) {
+ fprintf(stderr, "bad value? %g\n", d);
+ return TCL_ERROR;
+ }
+ type = types[type];
+ if (objc > 4) {
+ if (strcmp(Tcl_GetString(objv[4]), "shorten")) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj("bad flag", -1));
+ return TCL_ERROR;
+ }
+ type |= TCL_DD_SHORTEN_FLAG;
+ }
+ str = TclDoubleDigits(d, ndigits, type, &decpt, &signum, &endPtr);
+ strObj = Tcl_NewStringObj(str, endPtr-str);
+ ckfree(str);
+ retval = Tcl_NewListObj(1, &strObj);
+ Tcl_ListObjAppendElement(NULL, retval, Tcl_NewIntObj(decpt));
+ strObj = Tcl_NewStringObj(signum ? "-" : "+", 1);
+ Tcl_ListObjAppendElement(NULL, retval, strObj);
+ Tcl_SetObjResult(interp, retval);
+ return TCL_OK;
+}
+
+/*
*----------------------------------------------------------------------
*
* TestdstringCmd --