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Casts to pointer from integer of different size?
From: |
Maxime Devos |
Subject: |
Casts to pointer from integer of different size? |
Date: |
Tue, 06 Jul 2021 15:37:33 +0200 |
User-agent: |
Evolution 3.34.2 |
Hi guilers,
While debugging a build failure of guile on the core-updates branch
of guix (see https://isues.guix.gnu.org/49368) when build for
i686 (guix build --system=i686-linux), I noticed some following warnings
which look suspicious (plenty of tests are passing though, it is only
the test numbers.test that fails).
If they actually are harmless, can "vm-engine.c" be compiled with
-Wno-int-to-pointer-cast?
Greetings,
Maxime
vm-engine.c: In function 'vm_regular_engine':
../libguile/scm.h:176:23: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
176 | # define SCM_PACK(x) ((SCM) (x))
| ^
../libguile/gc.h:49:72: note: in definition of macro 'SCM_GC_SET_CELL_OBJECT'
49 | #define SCM_GC_SET_CELL_OBJECT(x, n, v) ((((SCM *)SCM2PTR (x)) [n]) =
(v))
| ^
../libguile/gc.h:51:38: note: in expansion of macro 'SCM_PACK'
51 | (SCM_GC_SET_CELL_OBJECT ((x), (n), SCM_PACK (v)))
| ^~~~~~~~
../libguile/gc.h:67:36: note: in expansion of macro 'SCM_GC_SET_CELL_WORD'
67 | #define SCM_SET_CELL_WORD(x, n, v) SCM_GC_SET_CELL_WORD ((x), (n), (v))
| ^~~~~~~~~~~~~~~~~~~~
vm-engine.c:1964:7: note: in expansion of macro 'SCM_SET_CELL_WORD'
1964 | SCM_SET_CELL_WORD (SP_REF (obj), SP_REF_U64 (idx), SP_REF_U64
(val));
| ^~~~~~~~~~~~~~~~~
../libguile/scm.h:176:23: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
176 | # define SCM_PACK(x) ((SCM) (x))
| ^
../libguile/gc.h:49:72: note: in definition of macro 'SCM_GC_SET_CELL_OBJECT'
49 | #define SCM_GC_SET_CELL_OBJECT(x, n, v) ((((SCM *)SCM2PTR (x)) [n]) =
(v))
| ^
../libguile/gc.h:51:38: note: in expansion of macro 'SCM_PACK'
51 | (SCM_GC_SET_CELL_OBJECT ((x), (n), SCM_PACK (v)))
| ^~~~~~~~
../libguile/gc.h:67:36: note: in expansion of macro 'SCM_GC_SET_CELL_WORD'
67 | #define SCM_SET_CELL_WORD(x, n, v) SCM_GC_SET_CELL_WORD ((x), (n), (v))
| ^~~~~~~~~~~~~~~~~~~~
vm-engine.c:1996:7: note: in expansion of macro 'SCM_SET_CELL_WORD'
1996 | SCM_SET_CELL_WORD (SP_REF (obj), idx, SP_REF_U64 (val));
| ^~~~~~~~~~~~~~~~~
vm-engine.c: In function 'vm_debug_engine':
../libguile/scm.h:176:23: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
176 | # define SCM_PACK(x) ((SCM) (x))
| ^
../libguile/gc.h:49:72: note: in definition of macro 'SCM_GC_SET_CELL_OBJECT'
49 | #define SCM_GC_SET_CELL_OBJECT(x, n, v) ((((SCM *)SCM2PTR (x)) [n]) =
(v))
| ^
../libguile/gc.h:51:38: note: in expansion of macro 'SCM_PACK'
51 | (SCM_GC_SET_CELL_OBJECT ((x), (n), SCM_PACK (v)))
| ^~~~~~~~
../libguile/gc.h:67:36: note: in expansion of macro 'SCM_GC_SET_CELL_WORD'
67 | #define SCM_SET_CELL_WORD(x, n, v) SCM_GC_SET_CELL_WORD ((x), (n), (v))
| ^~~~~~~~~~~~~~~~~~~~
vm-engine.c:1964:7: note: in expansion of macro 'SCM_SET_CELL_WORD'
1964 | SCM_SET_CELL_WORD (SP_REF (obj), SP_REF_U64 (idx), SP_REF_U64
(val));
| ^~~~~~~~~~~~~~~~~
../libguile/scm.h:176:23: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
176 | # define SCM_PACK(x) ((SCM) (x))
| ^
../libguile/gc.h:49:72: note: in definition of macro 'SCM_GC_SET_CELL_OBJECT'
49 | #define SCM_GC_SET_CELL_OBJECT(x, n, v) ((((SCM *)SCM2PTR (x)) [n]) =
(v))
| ^
../libguile/gc.h:51:38: note: in expansion of macro 'SCM_PACK'
51 | (SCM_GC_SET_CELL_OBJECT ((x), (n), SCM_PACK (v)))
| ^~~~~~~~
../libguile/gc.h:67:36: note: in expansion of macro 'SCM_GC_SET_CELL_WORD'
67 | #define SCM_SET_CELL_WORD(x, n, v) SCM_GC_SET_CELL_WORD ((x), (n), (v))
| ^~~~~~~~~~~~~~~~~~~~
vm-engine.c:1996:7: note: in expansion of macro 'SCM_SET_CELL_WORD'
1996 | SCM_SET_CELL_WORD (SP_REF (obj), idx, SP_REF_U64 (val));
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