./vbuf_print: "12345678901234567890          "
./vbuf_print: "          12345678901234567890"
./vbuf_print: "123456789"
./vbuf_print: "+123456789"
./vbuf_print: "123456789 "
./vbuf_print: " 123456789"
./vbuf_print: "0123456789"
./vbuf_print: "+123456789"
./vbuf_print: "123456789"
./vbuf_print: "123456789"
./vbuf_print: " 123456789"
./vbuf_print: "0123456789"
./vbuf_print: "726746425"
./vbuf_print: "726746425"
./vbuf_print: "726746425"
./vbuf_print: " 726746425"
./vbuf_print: "0726746425"
./vbuf_print: "100000000000000001097906362944045541740492309677311846336810682903157585404911491537163328978494688899061249669721172515611590283743140088328307009198146046031271664502933027185697489699588559043338384466165001178426897626212945177628091195786707458122783970171784415105291802893207873272974885715430223118336.000000"
./vbuf_print: "100000000000000001097906362944045541740492309677311846336810682903157585404911491537163328978494688899061249669721172515611590283743140088328307009198146046031271664502933027185697489699588559043338384466165001178426897626212945177628091195786707458122783970171784415105291802893207873272974885715430223118336.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
./vbuf_print: "1e+308"
./vbuf_print: "100000000000000001097906362944045541740492309677311846336810682903157585404911491537163328978494688899061249669721172515611590283743140088328307009198146046031271664502933027185697489699588559043338384466165001178426897626212945177628091195786707458122783970171784415105291802893207873272974885715430223118336"
./vbuf_print: "foo"
./vbuf_print: "foo"
./vbuf_print: ""
./vbuf_print: "       foo"
./vbuf_print: "       foo"
./vbuf_print: "foo       "