GCVT(3)

NAME
       gcvt - convert a floating-point number to a string.

SYNOPSIS
       #include <<stdlib.h>>

       char *gcvt(double number, size_t ndigit, char *buf);

DESCRIPTION
       The  gcvt()  function  converts number to a minimal length
       NULL terminated ASCII string and stores the result in buf.
       It produces ndigit significant digits in either printf() F
       format or E format.

RETURN VALUE
       The gcvt() function returns  the  address  of  the  string
       pointed to by buf.

SEE ALSO
       ecvt(3) fcvt(3) sprintf(3)