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Keep nulls in a verinum and keep as string when padding is mod 8. 

For diagnostics and to know what is really going on in the compiler
we need to keep any NULL that is in a verinum string or when
displayed as/converted to a string.

When padding a verinum string if the padding is in multiples of eight
then keep the string property.
This commit is contained in:
Cary R 2011-01-13 19:33:02 -08:00 committed by Stephen Williams
parent 1a1b0d7551
commit dc17190f4d
1 changed files with 4 additions and 4 deletions
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8
verinum.cc
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1998-2010 Stephen Williams (steve@icarus.com)
* Copyright (c) 1998-2011 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
@ -496,7 +496,6 @@ string verinum::as_string() const
return "";
string res;
bool leading_nuls = true;
for (unsigned idx = nbits_ ; idx > 0 ; idx -= 8) {
char char_val = 0;
V*bp = bits_+idx;
@ -509,8 +508,6 @@ string verinum::as_string() const
if (*(--bp) == V1) char_val |= 0x04;
if (*(--bp) == V1) char_val |= 0x02;
if (*(--bp) == V1) char_val |= 0x01;
if (char_val == 0 && leading_nuls)
continue;
if (char_val == '"' || char_val == '\\') {
char tmp[5];
@ -588,6 +585,9 @@ verinum pad_to_width(const verinum&that, unsigned width)
val.set(idx, that[idx]);
val.has_sign(that.has_sign());
if (that.is_string() && (width % 8) == 0) {
val = verinum(val.as_string());
}
return val;
}