The editor in KDevelop (KF5 version) highlights the floating point number 1.039 in red in C++ code. I think it sees "039" as an octal number which contains digit "9" which can not be part of octal number. Reproducible: Always KF5 version 5.10
Git commit 12acb06b6c6f6088f5d4c0732a4b9390066eeea7 by Christoph Cullmann. Committed on 11/07/2015 at 14:32. Pushed by cullmann into branch 'master'. fix floating point HL, use the inbuilt Float like in C M +4 -2 src/syntax/data/isocpp.xml http://commits.kde.org/ktexteditor/12acb06b6c6f6088f5d4c0732a4b9390066eeea7