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Home » U++ Library support » U++ SQL » ODBC Assertion failed
Re: ODBC Assertion failed [message #55830 is a reply to message #55824] Fri, 18 December 2020 14:02 Go to previous messageGo to previous message
mr_ped is currently offline  mr_ped
Messages: 826
Registered: November 2005
Location: Czech Republic - Praha
Experienced Contributor
Giorgio wrote on Fri, 18 December 2020 08:26
I've found out that the problem arises only in debug mode. The problem is the ASSERT at line 200 and 215 in ODBC/ODC.cpp. I can live without having the capability to debug that part of code, although it's very handy when there are issues (a problem with that part of the code was the reason I turned on the debugger in the first place).


Usually ASSERT compiles to nothing in release, and to debug check under debug.

So "arises only in debug mode" means that you see the warning in debug mode, but in release the same condition, which would trigger assert, does nothing and continues further.

ASSERT usually ensures conditions which "must be true" (and there is no need to check it at runtime) and the code after them usually is written in such a way that it may often crash hard if the condition is false.

So you get assert warning only in debug mode, but most likely the real problem is happening in release too, it's just not catched early by ASSERT, but causes havoc further down the line. In some situations you may be lucky that the code after is robust enough to survive even when condition is false, and the assert is rather just information that something is seriously broken in the code, way beyond the author expectations.

[Updated on: Fri, 18 December 2020 14:03]

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