| domain | ewontfix.com |
| summary | This document describes a potential issue with variadic functions in C/C++. Specifically, when a caller passes `0` as an integer argument to a variadic function, the upper 32 bits of the stack slot are overwritten with previously existing data. The `va_arg` mechanism then incorrectly interprets this data as a `void` argument, effectively pulling in this "junk" data. |
| title | EWONTFIX |
| description | EWONTFIX |
| keywords | null, have, code, function, type, library, using, thread, system, even, pointer, daemon, there, call, process, might, time |
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| nslookup | A 45.63.0.111 |
| created | 2026-03-07 |
| updated | 2026-03-07 |
| summarized | 2026-03-07 |
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