Changeset 940

Timestamp:

06/01/20 13:21:50 (5 years ago)

Author:

Maciej Komosinski

Message:

More flexible underflow detection in ExtValue::parseNumber()

File:

• cpp/frams/util/extvalue.cpp (modified) (3 diffs)

cpp/frams/util/extvalue.cpp

@@ -1 +1 @@
 // This file is a part of Framsticks SDK.  http://www.framsticks.com/
-// Copyright (C) 1999-2019  Maciej Komosinski and Szymon Ulatowski.
+// Copyright (C) 1999-2020  Maciej Komosinski and Szymon Ulatowski.
 // See LICENSE.txt for details.
 
@@ -13 +13 @@
 #include <common/Convert.h>
 #include <climits>
+#include <float.h>
 #include <errno.h>
 
@@ -1071 +1072 @@
         {
                 logPrintf("ExtValue", "parseNumber", LOG_WARN, "Unrepresentable number and strtod() signalled ERANGE: parsed %d chars of '%s' and returned '%f'", after - in, in, fpvalue);
-                if (fpvalue == 0) errno = 0; //otherwise we have +inf or -inf from a string number because it was too large for double-type, and we don't want to have infinities in ExtValue so we leave errno!=0
+                if (fabs(fpvalue) < DBL_MIN) errno = 0; //Underflow OK. Otherwise we have overflow: +inf or -inf from a string number because it was too large for double-type, and we don't want to have infinities in ExtValue so we leave errno!=0
         }
         if ((after > in) && (errno == 0))