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[unix-history] / usr / share / man / cat3 / fcvt.0

ECVT(3)              BSD Programmer's Manual              ECVT(3)


N\bNA\bAM\bME\bE
       ecvt, fcvt, gcvt - output conversion

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
       c\bch\bha\bar\br *\b*e\bec\bcv\bvt\bt(\b(v\bva\bal\blu\bue\be,\b, n\bnd\bdi\big\bgi\bit\bt,\b, d\bde\bec\bcp\bpt\bt,\b, s\bsi\big\bgn\bn)\b)
       d\bdo\bou\bub\bbl\ble\be v\bva\bal\blu\bue\be;\b;
       i\bin\bnt\bt n\bnd\bdi\big\bgi\bit\bt,\b, *\b*d\bde\bec\bcp\bpt\bt,\b, *\b*s\bsi\big\bgn\bn;\b;

       c\bch\bha\bar\br *\b*f\bfc\bcv\bvt\bt(\b(v\bva\bal\blu\bue\be,\b, n\bnd\bdi\big\bgi\bit\bt,\b, d\bde\bec\bcp\bpt\bt,\b, s\bsi\big\bgn\bn)\b)
       d\bdo\bou\bub\bbl\ble\be v\bva\bal\blu\bue\be;\b;
       i\bin\bnt\bt n\bnd\bdi\big\bgi\bit\bt,\b, *\b*d\bde\bec\bcp\bpt\bt,\b, *\b*s\bsi\big\bgn\bn;\b;

       c\bch\bha\bar\br *\b*g\bgc\bcv\bvt\bt(\b(v\bva\bal\blu\bue\be,\b, n\bnd\bdi\big\bgi\bit\bt,\b, b\bbu\buf\bf)\b)
       d\bdo\bou\bub\bbl\ble\be v\bva\bal\blu\bue\be;\b;
       c\bch\bha\bar\br *\b*b\bbu\buf\bf;\b;

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
       T\bTh\bhe\bes\bse\be i\bin\bnt\bte\ber\brf\bfa\bac\bce\bes\bs a\bar\bre\be o\bob\bbs\bso\bol\ble\bet\bte\bed\bd b\bby\by p\bpr\bri\bin\bnt\btf\bf(\b(3\b3)\b).\b.
       T\bTh\bhe\bey\by a\bar\bre\be a\bav\bva\bai\bil\bla\bab\bbl\ble\be f\bfr\bro\bom\bm t\bth\bhe\be c\bco\bom\bmp\bpa\bat\bti\bib\bbi\bil\bli\bit\bty\by l\bli\bib\bbr\bra\bar\bry\by,\b, l\bli\bib\bbc\bco\bom\bm-\b-
       p\bpa\bat\bt.\b.

       _\bE_\bc_\bv_\bt converts the _\bv_\ba_\bl_\bu_\be to  a  null-terminated  string  of
       _\bn_\bd_\bi_\bg_\bi_\bt  ASCII  digits  and returns a pointer thereto.  The
       position of the decimal point relative to the beginning of
       the  string  is  stored indirectly through _\bd_\be_\bc_\bp_\bt (negative
       means to the left of the returned digits).  If the sign of
       the  result  is  negative,  the word pointed to by _\bs_\bi_\bg_\bn is
       non-zero, otherwise it is zero.  The  low-order  digit  is
       rounded.

       _\bF_\bc_\bv_\bt  is  identical to _\be_\bc_\bv_\bt, except that the correct digit
       has been rounded for Fortran F-format output of the number
       of digits specified by _\bn_\bd_\bi_\bg_\bi_\bt_\bs.

       _\bG_\bc_\bv_\bt  converts the _\bv_\ba_\bl_\bu_\be to a null-terminated ASCII string
       in _\bb_\bu_\bf and returns a pointer to _\bb_\bu_\bf_\b.  It attempts to  pro-
       duce _\bn_\bd_\bi_\bg_\bi_\bt significant digits in Fortran F format if pos-
       sible, otherwise E format, ready for  printing.   Trailing
       zeros may be suppressed.

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
       printf(3)

B\bBU\bUG\bGS\bS
       The  return  values  point to static data whose content is
       overwritten by each call.








7th Edition                May 28, 1992                         1