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Fix underscores in real literals, bug863.

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Wilson Snyder 2014-12-19 18:14:32 -05:00
parent 2b5017e610
commit 5c3eee34a1
3 changed files with 6 additions and 4 deletions
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@ -23,6 +23,8 @@ indicates the contributor was also the author of the fix; Thanks!
**** Fix bare generates in interfaces, bug789. [Bob Newgard]
**** Fix underscores in real literals, bug863. [Jonathon Donaldson]
* Verilator 3.866 2014-11-15

7
src/verilog.l
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@ -972,15 +972,14 @@ int V3ParseImp::stateVerilogRecent() { return STATE_VERILOG_RECENT; }
double V3ParseImp::parseDouble(const char* textp, size_t length) {
char* strgp = new char[length+1];
char* dp=strgp;
for (const char* sp=textp; sp<(textp+length);) {
if (*sp != '_') *dp++ = *sp++;
else sp++;
for (const char* sp=textp; sp<(textp+length); ++sp) {
if (*sp != '_') *dp++ = *sp;
}
*dp++ = '\0';
char* endp = strgp;
double d = strtod(strgp, &endp);
size_t parsed_len = endp-strgp;
if (parsed_len != length) { yyerrorf("Syntax error parsing real: %s",strgp); }
if (parsed_len != strlen(strgp)) { yyerrorf("Syntax error parsing real: %s",strgp); }
delete strgp;
return d;
}

1
test_regress/t/t_math_real.v
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@ -24,6 +24,7 @@ module t (/*AUTOARG*/
sub_cast_bug374 sub (.cyc5(cyc[4:0]), .*);
initial begin
if (1_00_0.0_1 != 1000.01) $stop;
// rtoi truncates
if ($rtoi(36.7) != 36) $stop;
if ($rtoi(36.5) != 36) $stop;