Runtime Error what to do?

[mark_ua_1999]

Hi, i have got the following problem ASSERT: "i >= 0" in file ........\5.3\mingw482_32\include/QtCore/qstring.h, line 1023 in my qt program do you have any ideas how to resolve it thanks

[mrjj]

Hi
You most likely does something like

QString str;
str[X]
where X is bigger than string is or string is empty.

Use the debugger to spot the location.

[aha_1980]

@mrjj said in Runtime Error what to do?:

Hi
You most likely does something like

QString str;
str[X]
where X is bigger than string is or string is empty.

You're right, the index is out of bounds. but from the assert I guess that X is smaller than zero (X<0) :)

EDIT: X may be used uninitialized

[mrjj]

@aha_1980
Yeah, good catch , it seems to say assert for >=0 fail so
it most likely negative index.