Compiling Was: arrays and foreach

[SomeDude]

On Tuesday, 17 April 2012 at 12:11:21 UTC, David wrote:
>> In this case, I had to type:
>> rdmd -unittest --main test.d
>>
>> Without the --main, I would get linker errors, and couldn't 
>> find the
>> reason for these errors. Happily, someone here explained me 
>> that the
>> effect of the --main flag was to insert a main() function just 
>> for this
>> case.
>
> That's not surprising, try to write a C program with no main:
>
> ─[ArchBox][/tmp]╼ touch foo.c
> ─[ArchBox][/tmp]╼ LANG=C gcc foo.c
> /usr/lib/gcc/i686-pc-linux-gnu/4.7.0/../../../crt1.o: In 
> function `_start':
> (.text+0x18): undefined reference to `main'
> collect2: error: ld returned 1 exit status
>
> You get the linker errors, because there is no entry-point for 
> your program, but that has nothing to do with D, it's a common 
> behaviour for C, C++, D and other languages.
>
>
> And the unittest(-switch) is also good relativly good explained 
> at http://dlang.org/unittest.html (dlang -> search -> unittest)

Yeah I understand, but I thought that by writing unit tests, I 
would implicitly add an entry point, but now I see how dumb an 
idea that is.