Fix incorrect char usage in estring trim function - #862
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The trim function previously used 'char' type for comparing characters, which causes sign-extension issues when character values are in the range 128~255. Change to use 'unsigned char' ensures correct comparison and fixes the bug.
lihuiba
approved these changes
Jul 16, 2025
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The trim function previously used 'char' type for comparing characters,
which causes sign-extension issues when character values are in the range
128~255.
Change to use 'unsigned char' ensures correct comparison and fixes the bug.