Fixed warnings

[stefanatwork]

No description provided.

[Copilot]

Pull request overview

This PR aims to eliminate compiler warnings across the codebase by addressing uninitialized variables, unused code, and incomplete switch handling.

Changes:

• Initialize an STB_TEXTEDIT_CHARTYPE local used in stb_textedit_replace() to avoid uninitialized-variable warnings.
• Remove unused Level Zero extension-query helper code from the SYCL RT HWIF builder path.
• Add a default branch in CPU model frequency selection to ensure switch completeness.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
tutorials/common/imgui/imgui_widgets.cpp	Initializes a local “empty string” value to avoid uninitialized-use warnings.
kernels/sycl/rthwif_embree_builder.cpp	Removes unused driver-extension helper code; (see comment re: newly unused variable).
kernels/common/device.cpp	Adds a default case in CPU model switch to silence enum-handling warnings.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (1)

tutorials/common/imgui/imgui_widgets.cpp:4442

• Initializing STB_TEXTEDIT_CHARTYPE with a char literal ('\0') can still trigger sign/conversion warnings depending on what STB_TEXTEDIT_CHARTYPE maps to (e.g., ImWchar). Using value-initialization avoids any implicit char-to-wide conversions while keeping the intent the same.

                STB_TEXTEDIT_CHARTYPE empty_string = '\0';