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| author | Ammar Askar <ammar@ammaraskar.com> | 2020-06-01 17:21:43 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-06-01 17:21:43 (GMT) |
| commit | 06e3a27a3c863495390a07c695171a8e62a6e0d2 (patch) | |
| tree | 9d2d738971d6a057717c5f233d40a53a94121064 /Modules/sre_lib.h | |
| parent | a97011b9b8c8111f42e1e7594081956136d848da (diff) | |
| download | cpython-06e3a27a3c863495390a07c695171a8e62a6e0d2.zip cpython-06e3a27a3c863495390a07c695171a8e62a6e0d2.tar.gz cpython-06e3a27a3c863495390a07c695171a8e62a6e0d2.tar.bz2 | |
bpo-39943: Fix MSVC warnings in sre extension (GH-20508)
Diffstat (limited to 'Modules/sre_lib.h')
| -rw-r--r-- | Modules/sre_lib.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Modules/sre_lib.h b/Modules/sre_lib.h index 9cc7863..2657d8d 100644 --- a/Modules/sre_lib.h +++ b/Modules/sre_lib.h @@ -448,12 +448,15 @@ do { \ state->data_stack_base += size; \ } while (0) +/* We add an explicit cast to memcpy here because MSVC has a bug when + compiling C code where it believes that `const void**` cannot be + safely casted to `void*`, see bpo-39943 for details. */ #define DATA_STACK_POP(state, data, size, discard) \ do { \ TRACE(("copy data to %p from %" PY_FORMAT_SIZE_T "d " \ "(%" PY_FORMAT_SIZE_T "d)\n", \ data, state->data_stack_base-size, size)); \ - memcpy(data, state->data_stack+state->data_stack_base-size, size); \ + memcpy((void*) data, state->data_stack+state->data_stack_base-size, size); \ if (discard) \ state->data_stack_base -= size; \ } while (0) |