Merge pull request #280 from xexyl/1984-anonymous

Fix 1984/anonymous for macOS (clang?)

1984/anonymous/README.md

@@ -11,37 +11,13 @@
 
 	./anonymous
 
-NOTE: this entry will probably not work under macOS with the Apple chips (Intel
-should be fine though we have no way to test this; if anyone can confirm whether
-this will work under macOS with an Intel chip we'd appreciate if you let us
-know). Although it will compile cleanly it will not print anything out. More
-specifically, on modern systems one might need to specify `-m32` (though this
-actually doesn't seem to be the case) but the Apple chips which are arm64 based
-will not compile this entry:
 
-	ld: unknown/unsupported architecture name for: -arch armv4t
+[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed this to work
-	clang: error: linker command failed with exit code 1 (use -v to see invocation)
+under macOS. The fix was to prototype `read()` prior to being defined and not
-	make: *** [anonymous] Error 1
+using `int, int, int` as the entry does. Instead the second arg is a `void *`.
-
+In the `read()` function which actually calls `write(2)` the `i` (which is the
-We were able to get it to work under linux on a 64-bit machine without
+`void *` has to be cast to an `int`. This solves the problem. Thank you Cody for
-specifying `-m32`. However this will fail under the Apple chips because it is
+your assistance!
-arm64. If we specify `-arch i386` it will not compile:
-
-	Undefined symbols for architecture i386:
-	  "_write", referenced from:
-	      _read in anonymous-a2a56d.o
-	ld: symbol(s) not found for architecture i386
-
-
-If we add to the CFLAGS `-include unistd.h` we will run into another problem:
-
-
-	anonymous.c:2:25: error: conflicting types for 'read'
-	o, world!\n",'/'/'/'));}read(j,i,p){write(j/p+p,i---j,i/i);}
-				^
-	/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/unistd.h:472:10: note: previous declaration is here
-	ssize_t  read(int, void *, size_t) __DARWIN_ALIAS_C(read);
-		 ^
 
 
 ## Judges' comments:

1984/anonymous/anonymous.c

@@ -1,2 +1,2 @@
-int i;main(){for(;i["]<i;++i){--i;}"];read('-'-'-',i+++"hell\
+int read(int,void*,int);i;main(){for(;i["]<i;++i){--i;}"];read('-'-'-',i+++"hell\
-o, world!\n",'/'/'/'));}read(j,i,p){write(j/p+p,i---j,i/i);}
+o, world!\n",'/'/'/'));}read(int j,void *i,int p){write(j/p+p,i---j,(int)i/(int)i);}

bugs.md

@@ -233,18 +233,6 @@ contact the author (unless you are the author! :-) ).
 
 # 1984
 
-## [1984/anonymous](1984/anonymous/anonymous.c) ([README.md](1984/anonymous/README.md))
-## STATUS: doesn't work with some platforms - please help us fix
-
-
-Although this works under linux it does not work under macOS: it prints nothing,
-exiting 0.
-
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) added some notes about
-this in the [README.md](1984/anonymous/README.md) file. Can you fix this? We
-welcome your help!
-
-
 
 # 1985