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ALL: Massive 'const' cleanup

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These changes facilitate more robust parameter type checking and helps
to identify unexpected coding errors.

Most simulators can now also be compiled with a C++ compiler without
warnings.

Additionally, these changes have also been configured to facilitate easier
backporting of simulator and device simulation modules to run under the
simh v3.9+ SCP framework.
This commit is contained in:
Mark Pizzolato
2016-05-15 15:25:33 -07:00
parent 60a8a2d43d
commit 5531ccb175
444 changed files with 4119 additions and 3798 deletions
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23
SDS/sds_sys.c
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@@ -196,7 +196,8 @@ int32 col, rpt, ptr, mask, cctbuf[CCT_LNT];
t_stat r;
extern int32 lpt_ccl, lpt_ccp;
extern uint8 lpt_cct[CCT_LNT];
char *cptr, cbuf[CBUFSIZE], gbuf[CBUFSIZE];
const char *cptr;
char cbuf[CBUFSIZE], gbuf[CBUFSIZE];
ptr = 0;
for ( ; (cptr = fgets (cbuf, CBUFSIZE, fileref)) != NULL; ) { /* until eof */
@@ -251,7 +252,7 @@ for (i = wd = 0; i < 4; ) {
return wd;
}
t_stat sim_load (FILE *fileref, char *cptr, char *fnam, int flag)
t_stat sim_load (FILE *fileref, CONST char *cptr, CONST char *fnam, int flag)
{
int32 i, wd, buf[8];
int32 ldr = 1;
@@ -634,9 +635,10 @@ return SCPE_ARG;
cptr = updated pointer to input string
*/
char *get_tag (char *cptr, t_value *tag)
CONST char *get_tag (CONST char *cptr, t_value *tag)
{
char *tptr, gbuf[CBUFSIZE];
CONST char *tptr;
char gbuf[CBUFSIZE];
t_stat r;
tptr = get_glyph (cptr, gbuf, 0); /* get next field */
@@ -659,20 +661,17 @@ return cptr; /* no change */
status = error status
*/
t_stat parse_sym (char *cptr, t_addr addr, UNIT *uptr, t_value *val, int32 sw)
t_stat parse_sym (CONST char *cptr, t_addr addr, UNIT *uptr, t_value *val, int32 sw)
{
int32 i, j, k, ch;
t_value d, tag;
t_stat r;
char gbuf[CBUFSIZE];
char gbuf[CBUFSIZE], cbuf[2*CBUFSIZE];
while (isspace (*cptr)) cptr++;
for (i = 1; (i < 4) && (cptr[i] != 0); i++) {
if (cptr[i] == 0) {
for (j = i + 1; j <= 4; j++)
cptr[j] = 0;
}
}
memset (cbuf, '\0', sizeof(cbuf));
strncpy (cbuf, cptr, sizeof(cbuf)-5);
cptr = cbuf;
if ((sw & SWMASK ('A')) || ((*cptr == '\'') && cptr++)) { /* ASCII char? */
if (cptr[0] == 0) /* must have 1 char */
return SCPE_ARG;