ack/lang/m2/libm2/catch.c

75 lines
1.6 KiB
C

#include <em_abs.h>
#include <m2_traps.h>
static struct errm {
int errno;
char *errmes;
} errors[] = {
{ EARRAY, "array bound error"},
{ ERANGE, "range bound error"},
{ ESET, "set bound error"},
{ EIOVFL, "integer overflow"},
{ EFOVFL, "real overflow"},
{ EFUNFL, "real underflow"},
{ EIDIVZ, "divide by 0"},
{ EFDIVZ, "divide by 0.0"},
{ EIUND, "undefined integer"},
{ EFUND, "undefined real"},
{ ECONV, "conversion error"},
{ ESTACK, "stack overflow"},
{ EHEAP, "heap overflow"},
{ EILLINS, "illegal instruction"},
{ EODDZ, "illegal size argument"},
{ ECASE, "case error"},
{ EMEMFLT, "addressing non existent memory"},
{ EBADPTR, "bad pointer used"},
{ EBADPC, "program counter out of range"},
{ EBADLAE, "bad argument of lae"},
{ EBADMON, "bad monitor call"},
{ EBADLIN, "argument if LIN too high"},
{ EBADGTO, "GTO descriptor error"},
{ M2_TOOLARGE, "stack size of process too large"},
{ M2_TOOMANY, "too many nested traps + handlers"},
{ M2_NORESULT, "no RETURN from procedure function"},
{ M2_UOVFL, "cardinal overflow"},
{ -1, 0}
};
extern exit();
_catch(trapno)
int trapno;
{
register struct errm *ep = &errors[0];
char *errmessage;
char buf[20];
register char *p, *s;
char *q;
while (ep->errno != trapno && ep->errmes != 0) ep++;
if (p = ep->errmes) {
while (*p) p++;
Traps_Message(ep->errmes, 0, (int) (p - ep->errmes), 1);
}
else {
int i = trapno;
q = "error number xxxxxxxxxxxxx";
p = &q[13];
s = buf;
if (i < 0) {
i = -i;
*p++ = '-';
}
do
*s++ = i % 10 + '0';
while (i /= 10);
while (s > buf) *p++ = *--s;
*p = 0;
Traps_Message(q, 0, (int) (p - q), 1);
}
exit(trapno);
}