ilaclc.f – Synopsis Functions/Subroutines INTEGER function ilaclc (M, N, A, LDA) ILACLC scans a matrix for its last non-zero column. Function/Subroutine Documentation INTEGER function ilaclc (integerM, integerN, complex, dimension( lda, * )A, integerLDA) ILACLC scans a matrix for its last non-zero column. Purpose: ILACLC scans A for its last non-zero column. Parameters: M M…
NAME igraph – a library for creating and manipulating graphs DESCRIPTION igraph is a library for creating and manipulating graphs. It is intended to be as powerful (ie. fast) as possible to enable the analysis of large graphs. DOCUMENTATION The full documentation can be downloaded from the homepage of the library: <http://igraph.org> You might also…
NAME if_nametoindex, if_indextoname – mappings between network interface names and indexes SYNOPSIS #include <net/if.h> unsigned int if_nametoindex(const char *ifname); char *if_indextoname(unsigned int ifindex, char *ifname); DESCRIPTION The if_nametoindex() function returns the index of the network interface corresponding to the name ifname. The if_indextoname() function returns the name of the network interface corresponding to the interface…
NAME if_nameindex, if_freenameindex – get network interface names and indexes SYNOPSIS #include <net/if.h> struct if_nameindex *if_nameindex(void); void if_freenameindex(struct if_nameindex *ptr); DESCRIPTION The if_nameindex() function returns an array of if_nameindex structures, each containing information about one of the network interfaces on the local system. The if_nameindex structure contains at least the following entries: unsigned int if_index;…
NAME if_nametoindex, if_indextoname – mappings between network interface names and indexes SYNOPSIS #include <net/if.h> unsigned int if_nametoindex(const char *ifname); char *if_indextoname(unsigned int ifindex, char *ifname); DESCRIPTION The if_nametoindex() function returns the index of the network interface corresponding to the name ifname. The if_indextoname() function returns the name of the network interface corresponding to the interface…
NAME if_nameindex, if_freenameindex – get network interface names and indexes SYNOPSIS #include <net/if.h> struct if_nameindex *if_nameindex(void); void if_freenameindex(struct if_nameindex *ptr); DESCRIPTION The if_nameindex() function returns an array of if_nameindex structures, each containing information about one of the network interfaces on the local system. The if_nameindex structure contains at least the following entries: unsigned int if_index;…
ieeeck.f – Synopsis Functions/Subroutines INTEGER function ieeeck (ISPEC, ZERO, ONE) IEEECK Function/Subroutine Documentation INTEGER function ieeeck (integerISPEC, realZERO, realONE) IEEECK Purpose: IEEECK is called from the ILAENV to verify that Infinity and possibly NaN arithmetic is safe (i.e. will not trap). Parameters: ISPEC ISPEC is INTEGER Specifies whether to test just for inifinity arithmetic…
NAME ieee1284_read_data, ieee1284_write_data, ieee1284_data_dir, ieee1284_wait_data – control the data lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_data(struct parport *port); void ieee1284_write_data(struct parport *port, unsigned char dt); int ieee1284_data_dir(struct parport *port, int reverse); int ieee1284_wait_data(struct parport *port, unsigned char mask, unsigned char val, struct timeval *timeout); DESCRIPTION These functions manipulate the data lines of the parallel port associated with port (which must have been claimed using ieee1284_claim(3))….
NAME ieee1284_read_control, ieee1284_write_control, ieee1284_frob_control, ieee1284_do_nack_handshake – manipulate control lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_control(struct parport *port); void ieee1284_write_control(struct parport *port, unsigned char ct); void ieee1284_frob_control(struct parport *port, unsigned char mask, unsigned char val); int ieee1284_do_nack_handshake(struct parport *port, unsigned char ct_before, unsigned char ct_after, struct timeval *timeout); DESCRIPTION There are four control lines, three of which are usually inverted on PC-style ports. Where they differ, libieee1284…
NAME ieee1284_read_status, ieee1284_wait_status – analyse status lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_status(struct parport *port); int ieee1284_wait_status(struct parport *port, unsigned char mask, unsigned char val, struct timeval *timeout); DESCRIPTION There are five status lines, one of which is usually inverted on PC-style ports. Where they differ, libieee1284 operates on the IEEE 1284 values, not the PC-style inverted values. The status lines…
NAME ieee1284_read_data, ieee1284_write_data, ieee1284_data_dir, ieee1284_wait_data – control the data lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_data(struct parport *port); void ieee1284_write_data(struct parport *port, unsigned char dt); int ieee1284_data_dir(struct parport *port, int reverse); int ieee1284_wait_data(struct parport *port, unsigned char mask, unsigned char val, struct timeval *timeout); DESCRIPTION These functions manipulate the data lines of the parallel port associated with port (which must have been claimed using ieee1284_claim(3))….
NAME ieee1284_ref, ieee1284_unref – modify a port’s reference count SYNOPSIS #include <ieee1284.h> int ieee1284_ref(struct parport *port); int ieee1284_unref(struct parport *port); DESCRIPTION If you want to free the port list from ieee1284_find_ports but open one of the ports later on, you will need to prevent it from being destroyed in ieee1284_free_ports. Each port has a reference count, and…
NAME ieee1284_negotiate, ieee1284_terminate – IEEE 1284 negotiation SYNOPSIS #include <ieee1284.h> int ieee1284_negotiate(struct parport *port, int mode); void ieee1284_terminate(struct parport *port); DESCRIPTION These functions are for negotiating to and terminating from IEEE 1284 data transfer modes. The default mode is called compatibility mode, or in other words normal printer protocol. It is a host-to-peripheral mode only. There are special…
NAME ieee1284_set_timeout – modify inactivity timeout SYNOPSIS #include <ieee1284.h> struct timeval *ieee1284_set_timeout(struct parport *port, struct timeval *timeout); DESCRIPTION This function sets a new value for the inactivity timeout (used for block transfer functions), and returns the old value. The port must be claimed. The timeout parameter may be NULL, in which case the old value is left…
NAME ieee1284_release – release a port SYNOPSIS #include <ieee1284.h> void ieee1284_release(struct parport *port); DESCRIPTION This function undoes the effect of ieee1284_claim(3) by releasing the port for use by other drivers. It is good practice to release the port whenever convenient. If it is never convenient to do so, the F1284_EXCL flag should be specified at initialization….
NAME ieee1284_ref, ieee1284_unref – modify a port’s reference count SYNOPSIS #include <ieee1284.h> int ieee1284_ref(struct parport *port); int ieee1284_unref(struct parport *port); DESCRIPTION If you want to free the port list from ieee1284_find_ports but open one of the ports later on, you will need to prevent it from being destroyed in ieee1284_free_ports. Each port has a reference count, and…
NAME ieee1284_read_status, ieee1284_wait_status – analyse status lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_status(struct parport *port); int ieee1284_wait_status(struct parport *port, unsigned char mask, unsigned char val, struct timeval *timeout); DESCRIPTION There are five status lines, one of which is usually inverted on PC-style ports. Where they differ, libieee1284 operates on the IEEE 1284 values, not the PC-style inverted values. The status lines…
NAME ieee1284_read_data, ieee1284_write_data, ieee1284_data_dir, ieee1284_wait_data – control the data lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_data(struct parport *port); void ieee1284_write_data(struct parport *port, unsigned char dt); int ieee1284_data_dir(struct parport *port, int reverse); int ieee1284_wait_data(struct parport *port, unsigned char mask, unsigned char val, struct timeval *timeout); DESCRIPTION These functions manipulate the data lines of the parallel port associated with port (which must have been claimed using ieee1284_claim(3))….
NAME ieee1284_read_control, ieee1284_write_control, ieee1284_frob_control, ieee1284_do_nack_handshake – manipulate control lines SYNOPSIS #include <ieee1284.h> int ieee1284_read_control(struct parport *port); void ieee1284_write_control(struct parport *port, unsigned char ct); void ieee1284_frob_control(struct parport *port, unsigned char mask, unsigned char val); int ieee1284_do_nack_handshake(struct parport *port, unsigned char ct_before, unsigned char ct_after, struct timeval *timeout); DESCRIPTION There are four control lines, three of which are usually inverted on PC-style ports. Where they differ, libieee1284…
NAME ieee1284_open – open a port SYNOPSIS #include <ieee1284.h> int ieee1284_open(struct parport *port, int flags, int *capabilities); DESCRIPTION In order to begin using a port it must be opened. Any initial set-up of the port is done at this stage. When an open port is no longer needed it should be closed with ieee1284_close(3). The possible flags are:…