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diff --git a/man3/div.3 b/man3/div.3 new file mode 100644 index 0000000..fa2e538 --- /dev/null +++ b/man3/div.3 @@ -0,0 +1,106 @@ +'\" t +.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" References consulted: +.\" Linux libc source code +.\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) +.\" 386BSD man pages +.\" +.\" Modified 1993-03-29, David Metcalfe +.\" Modified 1993-07-24, Rik Faith (faith@cs.unc.edu) +.\" Modified 2002-08-10, 2003-11-01 Walter Harms, aeb +.\" +.TH div 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +div, ldiv, lldiv, imaxdiv \- compute quotient and remainder of +an integer division +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <stdlib.h> +.PP +.BI "div_t div(int " numerator ", int " denominator ); +.BI "ldiv_t ldiv(long " numerator ", long " denominator ); +.BI "lldiv_t lldiv(long long " numerator ", long long " denominator ); +.PP +.B #include <inttypes.h> +.PP +.BI "imaxdiv_t imaxdiv(intmax_t " numerator ", intmax_t " denominator ); +.fi +.PP +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.PP +.BR lldiv (): +.nf + _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L +.fi +.SH DESCRIPTION +The +.BR div () +function computes the value +\fInumerator\fP/\fIdenominator\fP and +returns the quotient and remainder in a structure +named \fIdiv_t\fP that contains +two integer members (in unspecified order) named \fIquot\fP and \fIrem\fP. +The quotient is rounded toward zero. +The result satisfies \fIquot\fP*\fIdenominator\fP+\fIrem\fP = \fInumerator\fP. +.PP +The +.BR ldiv (), +.BR lldiv (), +and +.BR imaxdiv () +functions do the same, +dividing numbers of the indicated type and +returning the result in a structure +of the indicated name, in all cases with fields \fIquot\fP and \fIrem\fP +of the same type as the function arguments. +.SH RETURN VALUE +The \fIdiv_t\fP (etc.) structure. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR div (), +.BR ldiv (), +.BR lldiv (), +.BR imaxdiv () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +C11, POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, C89, C99, SVr4, 4.3BSD. +.PP +.BR lldiv () +and +.BR imaxdiv () +were added in C99. +.SH EXAMPLES +After +.PP +.in +4n +.EX +div_t q = div(\-5, 3); +.EE +.in +.PP +the values \fIq.quot\fP and \fIq.rem\fP are \-1 and \-2, respectively. +.SH SEE ALSO +.BR abs (3), +.BR remainder (3) |