# Pages du manuel Linux : Fonctions des bibliothèques

Class::Struct
declare struct-like datatypes as Perl classes
Class::Trigger
Mixin to add / call inheritable triggers
Class::Virtual
Base class for virtual base classes.
Class::Virtually::Abstract
Compile-time enforcement of Class::Virtual
Class::WhiteHole
base class to treat unhandled method calls as errors
classq
return the values scl and ssq such that ( scl**2 )*ssq = x( 1 )**2 +...+ x( n )**2 + ( scale**2 )*sumsq,
claswp
perform a series of row interchanges on the matrix A
clasyf
compute a partial factorization of a complex symmetric matrix A using the Bunch-Kaufman diagonal pivoting method
clatbs
solve one of the triangular systems A * x = s*b, A**T * x = s*b, or A**H * x = s*b,
clatdf
compute the contribution to the reciprocal Dif-estimate by solving for x in Z * x = b, where b is chosen such that the norm of x is as large as possible
clatps
solve one of the triangular systems A * x = s*b, A**T * x = s*b, or A**H * x = s*b,
clatrd
reduce NB rows and columns of a complex Hermitian matrix A to Hermitian tridiagonal form by a unitary similarity transformation Q' * A * Q, and returns the matrices V and W which are needed to apply the transformation to the unreduced part of A
clatrs
solve one of the triangular systems A * x = s*b, A**T * x = s*b, or A**H * x = s*b,
clatrz
factor the M-by-(M+L) complex upper trapezoidal matrix [ A1 A2 ] = [ A(1:M,1:M) A(1:M,N-L+1:N) ] as ( R 0 ) * Z by means of unitary transformations, where Z is an (M+L)-by-(M+L) unitary matrix and, R and A1 are M-by-M upper triangular matrices
clatzm
routine is deprecated and has been replaced by routine CUNMRZ
clauu2
compute the product U * U' or L' * L, where the triangular factor U or L is stored in the upper or lower triangular part of the array A
clauum
compute the product U * U' or L' * L, where the triangular factor U or L is stored in the upper or lower triangular part of the array A
clear
clear all or part of a curses window
clearenv
Vider l'environnement.
clearerr
clear indicators on a stream
clear_bitmap
Clears the bitmap to color 0. Allegro game programming library.
clear_keybuf
Clears the keyboard buffer. Allegro game programming library.
clear_scene
Initializes a scene. Allegro game programming library.
clear_to_color
Clears the bitmap to the specified color. Allegro game programming library.
clear_zbuffer
Writes a depth value into the given Z-buffer. Allegro game programming library.
clientlib
NNTP clientlib part of InterNetNews library
ClientWhitePointOfCCC
See DisplayOfCCC.3
clip3d
Clips the polygon given in vtx using fixed point math. Allegro game programming library.
clip3d_f
Clips the polygon given in vtx using floating point math, Allegro game programming library.
Clipboard
Manage the clipboard
clipboard
Manipulate Tk clipboard
clock
Déterminer la durée d'utilisation du processeur.
clock
report CPU time used
clock
Obtain and manipulate time
clock_getcpuclockid
access a process CPU-time clock (ADVANCED REALTIME)
clock_gethrtime
get high resolution time using the specified clock
clock_getres
fonctions d'horloge et de temps
clock_getres
See clock_gettime.3posix
clock_gettime
clock and timer functions (REALTIME)
clock_nanosleep
high resolution sleep with specifiable clock (ADVANCED REALTIME)
clock_nanosleep
high resultion sleep with specifiable clock
clock_settime
See clock_gettime.3posix
clog
Logarithmes népériens de nombres complexes.
clog
complex natural logarithm functions
clog10
Logarithmes décimaux de nombres complexes.
clog2
Logarithmes binaires de nombres complexes.
clogf
See clog.3posix
clogl
See clog.3posix
Clone
recursively copy Perl datatypes
close
close a file descriptor