For bug #188449, since python floats have limited range, we multiply both floating...

svn path=/main/trunk/; revision=7606

diff --git a/pym/portage/versions.py b/pym/portage/versions.py
index ebf8cbada9d390750c62cd03b92d101300757ac7..b51b53ae543cb91a871064cb92983d1e453c9099 100644 (file)
--- a/pym/portage/versions.py
+++ b/pym/portage/versions.py
@@ -98,8 +98,17 @@ def vercmp(ver1, ver2, silent=1):
                                list2.append(int(vlist2[i]))
                        # now we have to use floats so 1.02 compares correctly against 1.1
                        else:
-                               list1.append(float("0."+vlist1[i]))
-                               list2.append(float("0."+vlist2[i]))
+                               # list1.append(float("0."+vlist1[i]))
+                               # list2.append(float("0."+vlist2[i]))
+                               # Since python floats have limited range, we multiply both
+                               # floating point representations by a constant so that they are
+                               # transformed into whole numbers. This allows the practically
+                               # infinite range of a python int to be exploited. The
+                               # multiplication is done by padding both literal strings with
+                               # zeros as necessary to ensure equal length.
+                               max_len = max(len(vlist1[i]), len(vlist2[i]))
+                               list1.append(int(vlist1[i].ljust(max_len, "0")))
+                               list2.append(int(vlist2[i].ljust(max_len, "0")))
 
        # and now the final letter
        if len(match1.group(5)):