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ifcviewer: drop unused SidecarHeader reserved field, bump v8 -> v9

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The reserved uint32_t was always written as 0 and never inspected on
read.  Removing it shrinks the header from 16 to 12 bytes; the version
bump makes pre-existing sidecars fail the version check cleanly rather
than misreading by 4 bytes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Dion Moult
2026-04-28 19:40:00 +10:00
parent 8282f691e8
commit 633c613da2
3 changed files with 8 additions and 8 deletions
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src/ifcviewer/SidecarCache.h
+2 -1
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@@ -45,7 +45,8 @@ static constexpr uint32_t SIDECAR_MAGIC = 0x49465657; // "IFVW"
// on path stem (foo.ifc and foo.ifcdb/ both map to foo.ifcview) so the
// same cache serves either source format. Staleness is user-managed
// (delete the sidecar to force a rebuild).
static constexpr uint32_t SIDECAR_VERSION = 8;
// v9 = unused `reserved` field dropped from header (16 B -> 12 B).
static constexpr uint32_t SIDECAR_VERSION = 9;
static constexpr uint32_t SIDECAR_ENDIAN = 0x01020304;
// Fixed-size element record. Strings are stored as (offset, length) pairs