Using FAKE_VOID_FUNC on vsyslog cause a sizeof-array-argument error

[ykoehler]

Describe the bug
FAKE_VALUE_FUNC(vsyslog, int, const char*, va_list);

is causing a sizeof of va_list which gcc turns into an error and therefore trigger the error sizeof-array-argument

To Reproduce
Compile the above

Expected behavior
detect array type and not call sizeof on them?

Screenshots
In file included from /home/ykoehler/fake_log.cpp:18:
/home/ykoehler/fake_log.cpp: In function ‘void vsyslog(int, const char*, __va_list_tag*)’:
/home/ykoehler/fff/include/fff.h:69:79: error: ‘sizeof’ on array function parameter ‘arg2’ will return size of ‘__va_list_tag*’ [-Werror=sizeof-array-argument]
memcpy((void*)&FUNCNAME##_fake.arg##n##_val, (void*)&arg##n, sizeof(arg##n));

Compiler, toolset, platform (please complete the following information):

• OS: Ubuntu 18.10
• Compiler: gcc (Ubuntu 8.2.0-7ubuntu1)

Additional context

[ballenthin]

I run into the same issues, is there already a work-a-round available?

[tastymushroom]

Same here.
gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

Did anyone come up with a solution yet? Thanks.

GREAT Framework BTW Mike. Only found it recently!

[alukichev]

Looks like it's hard to find info on mocking functions that take array arguments. typedef array to a user type for them results precisely in the reported error.

[jerry90908]

Similar issue here.
When original function input argument is 1D array, in previous compiler version(7.5.0), I was able to use pointer type to fake it.
However in gcc version 11.3.0, the following error is complained by the compiler,

fff.h:1680:64: error: argument 1 of type ‘uint8_t *’ {aka ‘unsigned char *’} declared as a pointer [-Werror=array-parameter=]

gcc version: cc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0