shithub: femtolisp

ref: e365cb1d33f1642da25d46c76b44dee842357b37
dir: /llt/notes/

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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);