ref: 27a3e413d3339a80fc4721257aaface77ad7f6e0
dir: /llt/notes/
my c library (jlibc)
------------
* bytevector utilities: memswap, memreverse, swap_el, etc.
* hashing, random#s: int32hash, int64hash, int64to32hash, lookup3, ptrhash
* utf8
* bitvector
- iostream, socket, asynch io
- cross-platform pathnames, cwd, exename, date/time, etc.
* floating point number utils: comparison, print_real, print_cplx
- strtab (with prefix searching)
(- pool allocator with hooks for gc (sweep function))
(- list (dequeue))
(- sort: msort list, qsort numbers) not too important since stdlib has qsort
- use non-allocating APIs. this means the interface never allocates or
frees memory for you. you have to manage space for objects yourself.
- separate math library. includes numal, cephes, my complex number routines,
more special functions
stream redesign:
memstream, single-descriptor-backed, pipe (read/write on separate descriptors)
do our own buffering, so we can implement getline without seek/skip
all provided functions must be in terms of read,write,poll,flush only
seek/skip will be available, but only works on files and strings
change semantics of bit i/o so it doesn't require skip(-1)
compare our implementation to somebody else's fread,fwrite,etc.
cool trick for faking string streams with stdio:
char buf[256];
v = list2(number(6), number(4));
FILE *f = fopen("/dev/null", "a");
setbuffer(f, buf, sizeof(buf));
print(f, v, 0);
printf("got '%s'\n", buf);