fix: index bug in for()

[lichaofan2008]

Description: index bug in for()

Log:

Summary by Sourcery

Bug Fixes:

• Change for-loop to decrement index (i--) when iterating backwards through m_btList to fix out-of-bounds behavior.

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 代码中的循环变量 i 在循环体内被修改，这可能会导致未定义的行为。应该避免在循环体内修改循环变量。
• 循环中每次都减去固定的 5，这可能会导致计算不准确，应该确认这个减法操作是否有必要。

是否建议立即修改:

• 是

[sourcery-ai]

Reviewer's Guide

Corrected the for-loop index operator to ensure proper reverse iteration over m_btList, fixing the tool-button visibility logic.

File-Level Changes

Change	Details	Files
Fixed loop index operator for reverse iteration	Replaced i++ with i-- in the for-loop header Preserved existing visibility and width calculations within the loop	src/grand-search/gui/exhibition/preview/generalwidget/aitoolbar.cpp

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[sourcery-ai]

Hey @lichaofan2008 - I've reviewed your changes - here's some feedback:

• Guard against an empty m_btList or explicitly cast its size() to a signed type before subtracting 1 to avoid underflow when the list is empty.
• Consider using reverse iterators (e.g., rbegin()/rend()) for clearer and safer backward iteration instead of manual index arithmetic.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Clauszy, lichaofan2008

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
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[lichaofan2008]

/forcemerge

[deepin-bot]

This pr force merged! (status: blocked)