Hi, Il 25/01/21 13:56, Olivier B. ha scritto:
fields += (fields.isEmpty() ? "" : ", ") + '"' + field + '"';
QStringBuilder usage is a red herring, pay close attention at what you're doing in the first +: you're summing a const char * (result of the ternary operator) with a char; that does not do string concatenation...
Passing one/both of the operands of the ternary operator as QStrings makes the problem disappear.
That however kills the advantage of QStringBuilder. Use QStringView / QLatin1String instead.
Tip: always define QT_NO_CAST_FROM_ASCII (or the more lenient QT_RESTRICTED_CAST_FROM_ASCII) in any Qt project.
HTH, -- Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer KDAB (France) S.A.S., a KDAB Group company Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com KDAB - The Qt, C++ and OpenGL Experts
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