[GIT-PULLS] [php-src] PR #23185: Clamp scale in bc_is_zero_for_scale to n_scale

[email protected] (iliaal)
Newsgroups php.git-pulls
Message-ID <[email protected]> 
Pull Request: https://github.com/php/php-src/pull/23185
Author: iliaal

bc_is_zero_for_scale walked n_len+scale digits without clamping scale to n_scale. Opposite-sign Number::compare with an explicit scale can call it when one operand is shorter, reading past the digit buffer. Match bc_is_near_zero and clamp first.
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