Introducing SAS/C Software, Release 6.50

Compiler and Library Changes

Compiler enhancements, fifty new functions, and ten new signals have expanded the capabilities of the SAS/C Compiler and Library.

Enhancements

The compiler and library enhancements include the following:

Stack space can now be allocated above the line.
Partitioned Data Set (PDS) sharing for file I/O has been improved.
VSAM Record Level Sharing (RLS) in now supported.
C++ style comments in C code are now supported by the SAS/C Compiler.
International Standard Organization (ISO) digraph translation is now supported in addition to the SAS/C digraph extensions.
Character string qualifiers enable you to specify either ASCII or EBCDIC character strings.
Compiler support for the at sign (@) has been extended to operate in the same contexts as the ampersand (&).

The following OpenEdition SAS/C Library Functions have been added for Release 6.50:
chpriority - Change process priority
endgrent - Close the group database
endpwent - Close the user database
extlink - Define an external link
getgrent - Access group database sequentially
getitimer - Obtain interval timer values
getpgid - Get process group id for a process
getpriority - Determine process priority
getpwent - Access user database sequentially
getrlimit - Obtain OpenEdition resource limits
getrusage - Obtain OpenEdition usage statistics
getsid - Get session leader id for a process
getwd - Get working directory pathname
lchown - Change file or link ownership
mmap - Map an HFS file into memory
mprotect - Change memory protection mapped to file
msgctl - Control a message queue
msgget - Create or find a message queue
msgrcv - Receive a message from a message queue
msgsnd - Send a message to a message queue
msgxrcv - Receive message with sender information
msync - Synchronize a memory mapped HFS file
munmap - Cancel mapping of a memory area to a file
oetaskctl - Control subtasks with OpenEdition
readextlink - Read an external link
realpath - Return absolute pathname
semctl - Control a semaphore set
semget - Create or find a set of semaphores
semop - Update semaphores automatically
setgrent - Reposition the group database
setitimer - Define an interval timer
setpriority - Change process priority
setpwent - Reposition the user database
setregid - Set real and/or effective group ID
setreuid - Set real and/or effective user ID
setrlimit - Define OpenEdition resource limits
shmat - Attach a shared memory segment
shmctl - Control a shared memory segment
shmdt - Detach a shared memory segment
shmget - Create or find a shared memory segment
sigblkjmp - Intercept longjmp without signal mask change
spawn - Spawn a new process
spawnp - Spawn a new process
tcgetsid - Get session leader id for a process
truncate - Truncate an HFS file.

Several OpenEdition functions that were provided with SAS/C Release 6.00, alarmd , blkjmp , siglongjmp , sleepd , and tcsetpgrp , have been enhanced to provide additional capabilities for Release 6.50.

New OpenEdition Signals

Support for a number of new signals that are defined by OpenEdition MVS in Release 5.2.2 and later has been added to SAS/C Release 6.50. (Many of these signals are defined for compatibility with UNIX operating systems but do not have a defined meaning under MVS. Consult UNIX documentation for further information on these signals.) The new signals and their meanings are as follows:
SIGBUS - UNIX compatibility
SIGIOER - IBM C compatibility
SIGPOLL - UNIX compatibility
SIGPROF - Profiling timer expired
SIGSYS - UNIX compatibility
SIGURG - UNIX compatibility
SIGVTALRM - Virtual timer expired
SIGWINCH - UNIX compatibility
SIGXCPU - CPU time limit exceeded
SIGXFSZ - File size limit exceeded.

Additional Library Support

In addition to the enhancements to our OpenEdition support, the following functions have been added or enhanced:
DOM - New Delete Operator Message function.
DOM_TOK - New Delete Operator Message with Tokens function.
WTO - New Write to Operator function.
WTOR - New Write to Operator with Reply function.
addsrch - Enhanced to provide new MVS search capability.

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	`chpriority` - Change process priority
	`endgrent` - Close the group database
	`endpwent` - Close the user database
	`extlink` - Define an external link
	`getgrent` - Access group database sequentially
	`getitimer` - Obtain interval timer values
	`getpgid` - Get process group id for a process
	`getpriority` - Determine process priority
	`getpwent` - Access user database sequentially
	`getrlimit` - Obtain OpenEdition resource limits
	`getrusage` - Obtain OpenEdition usage statistics
	`getsid` - Get session leader id for a process
	`getwd` - Get working directory pathname
	`lchown` - Change file or link ownership
	`mmap` - Map an HFS file into memory
	`mprotect` - Change memory protection mapped to file
	`msgctl` - Control a message queue
	`msgget` - Create or find a message queue
	`msgrcv` - Receive a message from a message queue
	`msgsnd` - Send a message to a message queue
	`msgxrcv` - Receive message with sender information
	`msync` - Synchronize a memory mapped HFS file
	`munmap` - Cancel mapping of a memory area to a file
	`oetaskctl` - Control subtasks with OpenEdition
	`readextlink` - Read an external link
	`realpath` - Return absolute pathname
	`semctl` - Control a semaphore set
	`semget` - Create or find a set of semaphores
	`semop` - Update semaphores automatically
	`setgrent` - Reposition the group database
	`setitimer` - Define an interval timer
	`setpriority` - Change process priority
	`setpwent` - Reposition the user database
	`setregid` - Set real and/or effective group ID
	`setreuid` - Set real and/or effective user ID
	`setrlimit` - Define OpenEdition resource limits
	`shmat` - Attach a shared memory segment
	`shmctl` - Control a shared memory segment
	`shmdt` - Detach a shared memory segment
	`shmget` - Create or find a shared memory segment
	`sigblkjmp` - Intercept `longjmp` without signal mask change
	`spawn` - Spawn a new process
	`spawnp` - Spawn a new process
	`tcgetsid` - Get session leader id for a process
	`truncate` - Truncate an HFS file.

	`SIGBUS` - UNIX compatibility
	`SIGIOER` - IBM C compatibility
	`SIGPOLL` - UNIX compatibility
	`SIGPROF` - Profiling timer expired
	`SIGSYS` - UNIX compatibility
	`SIGURG` - UNIX compatibility
	`SIGVTALRM` - Virtual timer expired
	`SIGWINCH` - UNIX compatibility
	`SIGXCPU` - CPU time limit exceeded
	`SIGXFSZ` - File size limit exceeded.

	`DOM` - New Delete Operator Message function.
	`DOM_TOK` - New Delete Operator Message with Tokens function.
	`WTO` - New Write to Operator function.
	`WTOR` - New Write to Operator with Reply function.
	`addsrch` - Enhanced to provide new MVS search capability.

Compiler and Library Changes

Enhancements

New OpenEdition Functions

New OpenEdition Signals

Additional Library Support