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Diffstat (limited to 'doc/PrintDbl.3')
| -rw-r--r-- | doc/PrintDbl.3 | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/doc/PrintDbl.3 b/doc/PrintDbl.3 index 9261451..4588126 100644 --- a/doc/PrintDbl.3 +++ b/doc/PrintDbl.3 @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: PrintDbl.3,v 1.6 2005/04/06 20:55:22 dkf Exp $ +'\" RCS: @(#) $Id: PrintDbl.3,v 1.7 2005/05/10 18:33:57 kennykb Exp $ '\" .so man.macros .TH Tcl_PrintDouble 3 8.0 Tcl "Tcl Library Procedures" @@ -40,6 +40,15 @@ special twist: the string is guaranteed to contain either a ``.'' or an ``e'' so that it doesn't look like an integer. Where \fB%g\fR would generate an integer with no decimal point, \fBTcl_PrintDouble\fR adds ``.0''. +.VS 8.5 +.PP +If the \fBtcl_precision\fR value is non-zero, the result will have +precisely that many digits of significance. If the value is zero +(the default), the result will have the fewest digits needed to +represent the number in such a way that \fBTcl_NewDoubleObj\fR +will generate the same number when presented with the given string. +IEEE semantics of rounding to even apply to the conversion. +.VE .SH KEYWORDS conversion, double-precision, floating-point, string |