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Line 14:		Line 14:
	</tt>		</tt>
	:5. implement your bifs by stealing bits from existing erl_bif_*.c files		:5. implement your bifs by stealing bits from existing erl_bif_*.c files
-	<tt>	+	<pre>
	BIF_RETTYPE re_grep_2(BIF_ALIST_2){		BIF_RETTYPE re_grep_2(BIF_ALIST_2){
-	Eterm result;	+	Eterm result;
-	result = magic_function();	+	result = magic_function();
-	BIF_RET(result);	+	BIF_RET(result);
	}		}
-	</tt>	+	</pre>
	:6. run make; make install		:6. run make; make install

---

Revision as of 16:56, 31 July 2006

1. run configure

2. add your bifs to erts/emulator/beam/bif.tab

bif re:grep/2 bif re:compile/1

3. create a C file

erts/emulator/beam/erl_bif_re.c

4. add your C file to erts/emulator/<arch>/Makefile

RUN_OBJS = $(OBJDIR)/erl_bif_re.o \

5. implement your bifs by stealing bits from existing erl_bif_*.c files

BIF_RETTYPE re_grep_2(BIF_ALIST_2){
  Eterm result;
  result = magic_function(); 
  BIF_RET(result);
}

6. run make; make install

steps 0-3 need only be done once.

note that if you add bif re:grep/2 to bif.tab there should be a erl_bif_re.c that implements BIF_RETTYPE re_grep_2(BIF_ALIST_2);