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Add static/const keywords to the arrays.

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This theoretically allows a compiler to optimize (parts of) the array
away if unused.

While there, make the array size implicit and use a _Static_assert() to
ensure that the definition matches up with the number of elements in the
list.
This commit is contained in:
Ed Schouten 2013-04-09 16:16:34 +00:00
parent 8cf455b8d9
commit 7c99b6764e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=249311
3 changed files with 17 additions and 8 deletions
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4
include/protocols/timed.h
View file

@ -90,11 +90,13 @@ struct tsp {
#define TSPTYPENUMBER 25
#ifdef TSPTYPES
const char *tsptype[TSPTYPENUMBER] =
static char const * const tsptype[] =
{ "ANY", "ADJTIME", "ACK", "MASTERREQ", "MASTERACK", "SETTIME", "MASTERUP",
"SLAVEUP", "ELECTION", "ACCEPT", "REFUSE", "CONFLICT", "RESOLVE", "QUIT",
"DATE", "DATEREQ", "DATEACK", "TRACEON", "TRACEOFF", "MSITE", "MSITEREQ",
"TEST", "SETDATE", "SETDATEREQ", "LOOP" };
_Static_assert(sizeof(tsptype) / sizeof(const char *) == TSPTYPENUMBER,
"Size of tsptype does not match TSPTYPENUMBER");
#endif
#endif /* !_TIMED_H_ */

4
sys/sys/syslog.h
View file

@ -69,7 +69,7 @@ typedef struct _code {
int c_val;
} CODE;
CODE prioritynames[] = {
static const CODE prioritynames[] = {
{ "alert", LOG_ALERT, },
{ "crit", LOG_CRIT, },
{ "debug", LOG_DEBUG, },
@ -122,7 +122,7 @@ CODE prioritynames[] = {
#define LOG_FAC(p) (((p) & LOG_FACMASK) >> 3)
#ifdef SYSLOG_NAMES
CODE facilitynames[] = {
static const CODE facilitynames[] = {
{ "auth", LOG_AUTH, },
{ "authpriv", LOG_AUTHPRIV, },
{ "console", LOG_CONSOLE, },

17
sys/sys/ttydefaults.h
View file

@ -95,10 +95,17 @@
* #define TTYDEFCHARS to include an array of default control characters.
*/
#ifdef TTYDEFCHARS
static cc_t ttydefchars[NCCS] = {
CEOF, CEOL, CEOL, CERASE, CWERASE, CKILL, CREPRINT,
CERASE2, CINTR, CQUIT, CSUSP, CDSUSP, CSTART, CSTOP, CLNEXT,
CDISCARD, CMIN, CTIME, CSTATUS, _POSIX_VDISABLE
#include <sys/cdefs.h>
#include <sys/_termios.h>
static const cc_t ttydefchars[] = {
CEOF, CEOL, CEOL, CERASE, CWERASE, CKILL, CREPRINT, CERASE2, CINTR,
CQUIT, CSUSP, CDSUSP, CSTART, CSTOP, CLNEXT, CDISCARD, CMIN, CTIME,
CSTATUS, _POSIX_VDISABLE
};
_Static_assert(sizeof(ttydefchars) / sizeof(cc_t) == NCCS,
"Size of ttydefchars does not match NCCS");
#undef TTYDEFCHARS
#endif
#endif /* TTYDEFCHARS */