translate-c: add detect possible member functions

[flyfish30]

Fixes ziglang/translate-c#14

If the function where the first argument is a container or a pointer to a container, then add a const variable that store the function, and the variable name is the function name without the prefix.

[flyfish30]

@Vexu Please review this PR.

[Vexu]

If you're going to submit this to https://github.com/ziglang/translate-c then I'd prefer to review it there when you do so.

[flyfish30]

If you're going to submit this to https://github.com/ziglang/translate-c then I'd prefer to review it there when you do so.

I had clone https://github.com/ziglang/translate-c into my computer, it failed to build by use command zig build. There isn't any introduction document that describe how to build translate-c.
Could you tell me how to build translate-c project?

The error message is show in bellow:

translate-c git:(main) zig build
/Users/guest/.cache/zig/p/aro-0.0.0-JSD1QgZiJgAHbAL6WgwZx2fEUPB2WbHdYkAQ50URgkCG/src/aro/Parser.zig:113:36: error: type 'u29' has no members
strings: std.ArrayListAligned(u8, .@"4"),
                                  ~^~~~

My zig compiler version is 0.14.0.

[Vexu]

In the build.zig.zon there is a minimum_zig_version which is greater than 0.14.0. You need master branch Zig to build it.

[flyfish30]

@Vexu I had success to build translate-c project by use last version zig in master branch. But can not translate main.c file to zig file.

The detail command and output messages is show in bellow:

➜  compile_c git:(dev-flyfish30) ../../zig-out/bin/translate-c main.c
main.c:1:10: fatal error: 'stdio.h' not found
#include <stdio.h>
          ^

After I specify the include path by -I parameter, it has more error messages to terminal. The detail command and partial output messages is show in bellow:

➜  compile_c git:(dev-flyfish30) ../../zig-out/bin/translate-c -I /opt/usr/include main.c
/opt/usr/include/sys/stdio.h:51:103: warning: unknown attribute 'availability' ignored [-Wunknown-attributes]
int renamex_np(const char *, const char *, unsigned int) __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0);
                                                                                                       ^
/opt/usr/include/Availability.h:338:51: note: expanded from here
    #define __TVOS_AVAILABLE(_vers)               __OS_AVAILABILITY(tvos,introduced=_vers)

How to fix this problem? My operate system is macOS 15.3.2.

[Vexu]

It's a known issue ziglang/translate-c#18, Vexu/arocc#848. You can wait for that PR to be merged or just avoid include stdio.h etc.

[flyfish30]

@Vexu I had update source code to your stdio-include branch, It can be successful build compile_c example by use zig 0.15.0-dev. I could start merging my code.

➜  compile_c git:(detect-member-func-dev) /opt/zig-0.15.0-dev.384+c06fecd46/zig build
Hello from my C program!
Hello from my Zig program!

But it is also failed to translate main.c file by use translate-c that built from your latest source code of branch stdio-include.

➜  compile_c git:(detect-member-func-dev) ../../zig-out/bin/translate-c main.c
main.c:1:10: fatal error: 'stdio.h' not found
#include <stdio.h>
         ^

[Vexu]

But it is also failed to translate main.c file by use translate-c that built from your latest source code of branch stdio-include.

That's because I'm adding the system include dirs in the build script, if you use zig build run -- main.c it should work.

[flyfish30]

But it is also failed to translate main.c file by use translate-c that built from your latest source code of branch stdio-include.

That's because I'm adding the system include dirs in the build script, if you use zig build run -- main.c it should work.

It is also failed by use your suggest command, the detail command and error messages is in below:

➜  translate-c git:(detect-member-func-dev) ✗ /opt/zig-0.15.0-dev.384+c06fecd46/zig build run -- examples/compile_c/main.c
main entry!
examples/compile_c/main.c:1:10: fatal error: 'stdio.h' not found
#include <stdio.h>
         ^