PR #23831 opened by Martin Storsjö (mstorsjo)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23831
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23831.patch
Older versions of Clang (17 and older) errored out on the previous
form like this:
./src/tests/checkasm/sw_ops.c:210:9: error: expected expression
210 | static_assert(sizeof(src0[1]) >= sizeof(uint32_t[256]),
"palette plane too small");
| ^
/usr/include/assert.h:158:24: note: expanded from macro 'static_assert'
158 | # define static_assert _Static_assert
| ^
While newer versions of Clang merely warned about it:
./src/tests/checkasm/sw_ops.c:210:9: warning: label followed by a
declaration is a C23 extension [-Wc23-extensions]
210 | static_assert(sizeof(src0[1]) >= sizeof(uint32_t[256]),
"palette plane too small");
| ^
/usr/include/assert.h:158:24: note: expanded from macro 'static_assert'
158 | # define static_assert _Static_assert
| ^
From 0fd6b796b80cf08affda86dea9fdfd40089a988e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Storsj=C3=B6?= <[email protected]>
Date: Thu, 16 Jul 2026 15:18:33 +0300
Subject: [PATCH] checkasm: sw_ops: Fix building with older versions of Clang
Older versions of Clang (17 and older) errored out on the previous
form like this:
./src/tests/checkasm/sw_ops.c:210:9: error: expected expression
210 | static_assert(sizeof(src0[1]) >= sizeof(uint32_t[256]),
"palette plane too small");
| ^
/usr/include/assert.h:158:24: note: expanded from macro 'static_assert'
158 | # define static_assert _Static_assert
| ^
While newer versions of Clang merely warned about it:
./src/tests/checkasm/sw_ops.c:210:9: warning: label followed by a
declaration is a C23 extension [-Wc23-extensions]
210 | static_assert(sizeof(src0[1]) >= sizeof(uint32_t[256]),
"palette plane too small");
| ^
/usr/include/assert.h:158:24: note: expanded from macro 'static_assert'
158 | # define static_assert _Static_assert
| ^
---
tests/checkasm/sw_ops.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/checkasm/sw_ops.c b/tests/checkasm/sw_ops.c
index e6c28062ed..df81caf469 100644
--- a/tests/checkasm/sw_ops.c
+++ b/tests/checkasm/sw_ops.c
@@ -207,8 +207,8 @@ static void check_compiled(const Test *test,
const SwsUOp *read_op = &test->uops[0];
switch (read_op->uop) {
case SWS_UOP_READ_PALETTE:
- static_assert(sizeof(src0[1]) >= sizeof(uint32_t[256]), "palette plane
too small");
exec.in_bump[1] = exec.in_stride[1] = 0;
+ static_assert(sizeof(src0[1]) >= sizeof(uint32_t[256]), "palette plane
too small");
break;
case SWS_UOP_READ_PLANAR_FV: {
const int *offsets = read_op->data.kernel->offsets;
--
2.52.0
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