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T2.c1: add kept-cast macro set (CAST_ALIAS/SIGN/WIDTH/MISALIGNED/NONSTRUCT) to common.h

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Drew T
2026-10-01 11:08:22 -06:00
parent 0ea6e9d54d
commit 4d2e2b676e
3 changed files with 42 additions and 1 deletions
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include/common.h
+17
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@@ -60,6 +60,23 @@ typedef s64 M2C_UNK64;
#define LOW(x) (*(s32 *)&(x))
#define LOWU(x) (*(u32 *)&(x))
/* Kept-cast macros (Phase 39 T2, 2026-10-01): the cast campaign's ONLY spelling for a `*(T *)(p + k)` the byte gate
* refuses as a member. Each expands to the identical cast (same expression tree, same bytes; one make-check IDENTICAL
* per macro recorded in phase-ends/current/tasks/T2.md) and names ONE cause class. `type_census --check-casts` counts a
* site by macro name and demands its restruct ledger row (rung S, site verdict KEPT(<class>), R99/R100); a cast outside
* this set is raw and fails the gate. M2C_FIELD above stays raw (form M). The lvalue reinterpretations LOBU..LOWU above
* are the set's sixth class, REINTERP.
* CAST_ALIAS SCHED-ALIAS member spelling (/s) moves the scheduler or cse (cookbook §458)
* CAST_SIGN SIGN the access's sign differs from the field the layout holds
* CAST_WIDTH WIDTH overlap loser: a second width at an offset whose layout holds another width
* CAST_MISALIGNED MISALIGNED the offset is not a multiple of the access width
* CAST_NONSTRUCT NON-STRUCT the base is arithmetic, not an object the struct map explains */
#define CAST_ALIAS(T, p, k) (*(T *)((p) + (k)))
#define CAST_SIGN(T, p, k) (*(T *)((p) + (k)))
#define CAST_WIDTH(T, p, k) (*(T *)((p) + (k)))
#define CAST_MISALIGNED(T, p, k) (*(T *)((p) + (k)))
#define CAST_NONSTRUCT(T, p, k) (*(T *)((p) + (k)))
#include "gte_inline.h" /* Phase 36 T5: the GTE coprocessor macros, one definition each */
#include "struct_types.h" /* Phase 38 T3: the struct map's canonical layouts, one definition each, visible to every space */
#endif /* COMMON_H */