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ActiveTcl User Guide
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Tcl_PrintDouble - Convert floating value to string
#include <tcl.h>
Tcl_PrintDouble(interp, value, dst)
Tcl_PrintDouble generates a string that represents the value of value and stores it in memory at the location given by dst. It uses %g format to generate the string, with one special twist: the string is guaranteed to contain either a ``.'' or an ``e'' so that it doesn't look like an integer. Where %g would generate an integer with no decimal point, Tcl_PrintDouble adds ``.0''.
conversion, double-precision, floating-point, string
Copyright © 1989-1993 The Regents of the University of California. Copyright © 1994-1997 Sun Microsystems, Inc. Copyright © 1995-1997 Roger E. Critchlow Jr.