Lib won't compile on MinGW

[Gpinchon]

The lib won't compile on MinGW because of the wchat_t type not being fully supported.
Returns the error :

ft_putnwstr.c:26:17: error: comparison is always true due to limited range of data type [-Werror=type-limits]
   else if (*str <= 0xFFFF)
                 ^
ft_putnwstr.c:28:17: error: comparison is always true due to limited range of data type [-Werror=type-limits]
   else if (*str <= 0x10FFFF)
                 ^

[roblabla]

Well, given we don't really care about MinGW at 42, maybe you can turn off the type-limit check. It doesn't look like it would result in any problem.

[Gpinchon]

Not very clean but fair.
However I would recommend making an OS-detecting Makefile.

[roblabla]

The problem is that mingw looks broken, and my belief is that working around bugs that come from upstream is a programming practice that should die in fire.

If it's a bug in MinGW, we should fix MinGW. If it's a bug in libft, then libft should be fixed. Making it work differently across different OS because some OSes are broken is a no go.

[Gpinchon]

But I... Okay... [Ignites himself]

[roblabla]

https://github.com/Alexpux/mingw-w64/blob/d0d7f784833bbb0b2d279310ddc6afb52fe47a46/mingw-w64-headers/crt/crtdefs.h#L98

MINGW defines wchar_t as an unsigned short.

https://www.gnu.org/software/libc/manual/html_node/Extended-Char-Intro.html

GCC defines it as "always 32 bits wide and, therefore, capable of representing all UCS-4 values and, therefore, covering all of ISO 10646."

http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/stddef.h.html

POSIX defines wchar_t as "Integer type whose range of values can represent distinct codes for all members of the largest extended character set specified among the supported locales".

So MinGW's largest extended character set is UTF-16 (this is a supposition). This means that MinGW is technically right. To support MinGW correctly, this code would likely have to be rewritten.

There is more information there : https://www.gnu.org/software/libc/manual/html_node/Extended-Char-Intro.html