Updated Block retain in ARC.
In bbum's famous [Blocks Tips and Tricks](http://www.friday.com/bbum/2009/08/29/blocks-tips-tricks/) great examples were shown. However, things changed a litte bit in ARC. typedef int(^Blocky)(void); Blocky b[3]; for (int i=0; i<3; i++) { b[i] = ^{ return i;}; } for (int i=0; i<3; i++) { printf("b %d\n", b[i]()); } The result is b 0 b 1 b 2 Looks like blocks are retained correctly. If you dig a little bit deeper you'll see it was retained automaticaly. Another victory for ARC. leal "___32-[BlockSamplesTests testExample]_block_invoke_0"-L0$pb(%ecx), %esi movl L__NSConcreteStackBlock$non_lazy_ptr-L0$pb(%ecx), %edi .loc 1 19 5 ## /Users/jsa/Developer/BlockSamples/BlockSamplesTests/BlockSamplesTests.m:19:5 Ltmp12: movl %edi, -64(%ebp) movl $1073741824, -60(%ebp) ## imm = 0x40000000 movl $0, -56(%ebp) movl %esi, -52(%ebp) movl %edx, -48(%ebp) movl -40(%ebp), %edx movl %edx, -44(%ebp) movl %eax, (%esp) calll L_objc_retainBlock$stub movl -40(%ebp), %ecx movl -36(%ebp,%ecx,4), %edx movl %eax, -36(%ebp,%ecx,4) movl %edx, (%esp) calll L_objc_release$stub Ltmp13: ## BB#3: ## in Loop: Header=BB0_1 Depth=1
