Bug in macro function TEST(s) #s.

[zzdmfk]

C code:

#define TEST(s) #s

int printf(const char* str, ...);

int main()
{
   printf("%s\n", TEST(hello));
   return 0;
}

When I ran the above code, it outputted:

hello)

A right bracket was appended to the string, so I modified the function nextc() in lexer.c to:

static char nextc()
{
    char c = lex_process->functions->next_char(lex_process);

    if(lex_is_in_expression())
    {
        buffer_write(lex_process->parentheses_buffer, c);
        if(lex_process->argument_string_buffer)
        {
            if(c != ')') //I only added this if statement before buffer_write, I don't know if it is ok or not
                buffer_write(lex_process->argument_string_buffer, c);
        }
    }

    lex_process->pos.col += 1;
    if (c == '\n')
    {
        lex_process->pos.line += 1;
        lex_process->pos.col = 1;
    }

    return c;
}

It ouputted correctly, but I am not sure it would affects other functionalities or not.

[nibblebits]

Hello, Did you get to the end of the course first? Can you try this on the last commit and see if its still present

Thanks

[zzdmfk]

I didn't finish the course yet. I found the problem when I was coding follow your video, I was afraid it was my fault, so I reexamined it by pulling the last commit, but the problem still exsists.

Terminal outputs:

george@george-virtual-machine:~/Desktop/ccc/PeachCompiler$ ./main
section .data
section .text
extern printf
global main
; main function
main:
push ebp
mov ebp, esp
lea ebx, [printf]
push ebx
pop ebx
mov dword [function_call_1], ebx
mov eax, str_2
push eax
mov eax, str_3
push eax
call [function_call_1]
add esp, 8
push eax
pop eax
push eax
add esp, 4
pop ebp
ret
section .data
function_call_1: dd 0
section .rodata
str_2: db 'h', 'e', 'l', 'l', 'o', ')', 0
str_3: db '%', 's', 10, 0
everything compiled file
/usr/bin/ld: ./test.o: warning: relocation in read-only section `.text'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
nasm -f elf32 ./test -o ./test.o && gcc -m32 ./test.o -o ./testgeorge@george-virtual-machine:~/Desktop/ccc/PeachCompiler$ ./test
hello)

[nibblebits]

But did you pull the most recent commit in the whole repository to test it against because sometimes things get fixed as we go along

Thanks

[zzdmfk]

I tried it just now, the problem still persists, below is my git information, is it the lastest commit?

george@george-ubuntu:~/Desktop/gitcompiler/PeachCompiler$ git remote -v
origin	https://github.com/nibblebits/PeachCompiler.git (fetch)
origin	https://github.com/nibblebits/PeachCompiler.git (push)
george@george-ubuntu:~/Desktop/gitcompiler/PeachCompiler$ git pull
Already up to date.
george@george-ubuntu:~/Desktop/gitcompiler/PeachCompiler$ git log
commit 6bbbd1a9a85fdbdb7364a2ac6fb27da622566423 (HEAD -> main, origin/main, origin/HEAD)
Author: Daniel McCarthy <[email protected]>
Date:   Sat May 27 12:46:25 2023 +0100

    Lecture 258 - Implementing the validation of structures and unions

commit 47c7e60ea1316712571b203d333ffdb54f40f781
Author: Daniel McCarthy <[email protected]>
Date:   Sat May 27 10:12:37 2023 +0100

    Lecture 257 - Implementing the validation of statements

commit 34ad00e88d62d0577dfcdead5f3c5d3ed1ce242a
Author: Daniel McCarthy <[email protected]>
Date:   Sat May 27 09:56:22 2023 +0100

[nibblebits]

Great thanks I will keep the issue open until the problem is solved thanks for letting me know