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Handle null string as a single nul character.

This commit is contained in:
steve 2004-05-18 18:43:15 +00:00
parent 5807d6912e
commit d60112d58b
1 changed files with 20 additions and 1 deletions
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21
verinum.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: verinum.cc,v 1.42 2004/02/17 06:52:55 steve Exp $"
#ident "$Id: verinum.cc,v 1.43 2004/05/18 18:43:15 steve Exp $"
#endif
# include "config.h"
@ -45,6 +45,22 @@ verinum::verinum(const string&str)
: has_len_(true), has_sign_(false), string_flag_(true)
{
nbits_ = str.length() * 8;
// Special case: The string "" is 8 bits of 0.
if (nbits_ == 0) {
nbits_ = 8;
bits_ = new V [nbits_];
bits_[0] = V0;
bits_[1] = V0;
bits_[2] = V0;
bits_[3] = V0;
bits_[4] = V0;
bits_[5] = V0;
bits_[6] = V0;
bits_[7] = V0;
return;
}
bits_ = new V [nbits_];
unsigned idx, cp;
@ -926,6 +942,9 @@ verinum::V operator ^ (verinum::V l, verinum::V r)
/*
* $Log: verinum.cc,v $
* Revision 1.43 2004/05/18 18:43:15 steve
* Handle null string as a single nul character.
*
* Revision 1.42 2004/02/17 06:52:55 steve
* Support unsigned divide of huge numbers.
*