strpct(3) [netbsd man page]

STRPCT(3)						   BSD Library Functions Manual 						 STRPCT(3)

NAME

     strpct, strspct -- decimal percent formatters

LIBRARY

     System Utilities Library (libutil, -lutil)

SYNOPSIS

     #include <util.h>

     char *
     strpct(char *buf, size_t bufsiz, uintmax_t numerator, uintmax_t denominator, size_t precision);

     char *
     strspct(char *buf, size_t bufsiz, intmax_t numerator, intmax_t denominator, size_t precision);

DESCRIPTION

     The strpct() function formats the fraction represented by numerator and denominator into a percentage representation with given number of
     digits of precision without using floating point arithmetic.

RETURN VALUES

     strpct() and strspct() always return a pointer to a NUL-terminated (unless buflen is 0) formatted string which is placed in buf and is up to
     buflen characters.  If there was an overflow, the formatted string will reflect that precision loss.

EXAMPLES

	   strpct(buf, buflen, 1, 16, 3);
	   => "6.250"
	   strpct(buf, buflen, 1, 2, 0);
	   => "50"

HISTORY

     strpct() was originally implemented in csh(1) for NetBSD 1.3.  It printed into a static buffer, was not locale aware, handled unsigned long
     numbers, and printed a ``%'' at the end of the number.  Other programs such as df(1) and time(1) started using it.  strpct() and strspct()
     appeared separately in libutil for NetBSD 6.0.

AUTHORS

     Erik E. Fair <fair@netbsd.org>

BSD
								  January 7, 2012							       BSD

STRPCT(3)						   BSD Library Functions Manual 						 STRPCT(3)

NAME

     strpct, strspct -- decimal percent formatters

LIBRARY

     System Utilities Library (libutil, -lutil)

SYNOPSIS

     #include <util.h>

     char *
     strpct(char *buf, size_t bufsiz, uintmax_t numerator, uintmax_t denominator, size_t precision);

     char *
     strspct(char *buf, size_t bufsiz, intmax_t numerator, intmax_t denominator, size_t precision);

DESCRIPTION

     The strpct() function formats the fraction represented by numerator and denominator into a percentage representation with given number of
     digits of precision without using floating point arithmetic.

RETURN VALUES

     strpct() and strspct() always return a pointer to a NUL-terminated (unless buflen is 0) formatted string which is placed in buf and is up to
     buflen characters.  If there was an overflow, the formatted string will reflect that precision loss.

EXAMPLES

	   strpct(buf, buflen, 1, 16, 3);
	   => "6.250"
	   strpct(buf, buflen, 1, 2, 0);
	   => "50"

HISTORY

     strpct() was originally implemented in csh(1) for NetBSD 1.3.  It printed into a static buffer, was not locale aware, handled unsigned long
     numbers, and printed a ``%'' at the end of the number.  Other programs such as df(1) and time(1) started using it.  strpct() and strspct()
     appeared separately in libutil for NetBSD 6.0.

AUTHORS

     Erik E. Fair <fair@netbsd.org>

BSD
								  January 7, 2012							       BSD