Re: Lua and WinCE
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- Subject: Re: Lua and WinCE
- From: Ivan Kolev <ikolev@...>
- Date: 2002年9月23日 22:20:20 +0300
> Instead of #defines, we try to keep a tight control over the use of
> stdlib. The core of Lua uses only malloc (and only through lmem.c), a
> single function from stdio (sprintf, to convert doubles to strings), and
> "light" functions (that is, functions that are very easy to implement
> directly in C, such as memcpy and isalpha).
OK, no complaints about the core, actually the only two things I had to
add were
typedef int ptrdiff_t; // missing from stddef.h
#define strcoll strcmp // missing from string.h
> In the libraries we have a more relaxed standard. Even then, besides the
> stdio.h functions, I believe most of the functions we use are easily
> implemented, one way or another. And remember that you can include
> a LUA_USER_H header file when compiling Lua, and you can use it to
Thanks for that one, hadn't noticed it.
> In file lua_user.h or directly in the makefile:
>
> #define strerror(x) "unknown error"
>
> Similarly, if your system does not support `fseek', you can add
>
> #define fseek(a,b,c) luaL_error(L, "`seek' not supported")
>
> Or more drastically (and more Lua-independent):
>
> #define fseek(a,b,c) assert(((void)"seek not supported", 0))
Good ideas, thanks.
Ivan