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bc: BC_RESULT_ONE is bc-specific

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-12-24 23:41:31 +01:00
parent 0c45bb22a0
commit d897c9aca6
1 changed files with 84 additions and 84 deletions
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168
miscutils/bc.c
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@ -354,21 +354,21 @@ typedef struct BcFunc {
} BcFunc;
typedef enum BcResultType {
BC_RESULT_TEMP,
XC_RESULT_TEMP,
BC_RESULT_VAR,
BC_RESULT_ARRAY_ELEM,
BC_RESULT_ARRAY,
XC_RESULT_VAR,
XC_RESULT_ARRAY_ELEM,
XC_RESULT_ARRAY,
BC_RESULT_STR,
XC_RESULT_STR,
//code uses "inst - XC_INST_IBASE + BC_RESULT_IBASE" construct,
BC_RESULT_IBASE, // relative order should match for: XC_INST_IBASE
BC_RESULT_OBASE, // relative order should match for: XC_INST_OBASE
BC_RESULT_SCALE, // relative order should match for: XC_INST_SCALE
//code uses "inst - XC_INST_IBASE + XC_RESULT_IBASE" construct,
XC_RESULT_IBASE, // relative order should match for: XC_INST_IBASE
XC_RESULT_OBASE, // relative order should match for: XC_INST_OBASE
XC_RESULT_SCALE, // relative order should match for: XC_INST_SCALE
IF_BC(BC_RESULT_LAST,) // relative order should match for: BC_INST_LAST
BC_RESULT_CONSTANT,
BC_RESULT_ONE,
XC_RESULT_CONSTANT,
IF_BC(BC_RESULT_ONE,)
} BcResultType;
typedef union BcResultData {
@ -780,7 +780,7 @@ typedef struct BcProgram {
#define BC_PROG_STR(n) (!(n)->num && !(n)->cap)
#define BC_PROG_NUM(r, n) \
((r)->t != BC_RESULT_ARRAY && (r)->t != BC_RESULT_STR && !BC_PROG_STR(n))
((r)->t != XC_RESULT_ARRAY && (r)->t != XC_RESULT_STR && !BC_PROG_STR(n))
#define BC_FLAG_W (1 << 0)
#define BC_FLAG_V (1 << 1)
@ -2451,22 +2451,22 @@ static void dc_result_copy(BcResult *d, BcResult *src)
d->t = src->t;
switch (d->t) {
case BC_RESULT_TEMP:
case BC_RESULT_IBASE:
case BC_RESULT_SCALE:
case BC_RESULT_OBASE:
case XC_RESULT_TEMP:
case XC_RESULT_IBASE:
case XC_RESULT_SCALE:
case XC_RESULT_OBASE:
bc_num_init(&d->d.n, src->d.n.len);
bc_num_copy(&d->d.n, &src->d.n);
break;
case BC_RESULT_VAR:
case BC_RESULT_ARRAY:
case BC_RESULT_ARRAY_ELEM:
case XC_RESULT_VAR:
case XC_RESULT_ARRAY:
case XC_RESULT_ARRAY_ELEM:
d->d.id.name = xstrdup(src->d.id.name);
break;
case BC_RESULT_CONSTANT:
case XC_RESULT_CONSTANT:
IF_BC(case BC_RESULT_LAST:)
case BC_RESULT_ONE:
case BC_RESULT_STR:
IF_BC(case BC_RESULT_ONE:)
case XC_RESULT_STR:
memcpy(&d->d.n, &src->d.n, sizeof(BcNum));
break;
}
@ -2478,15 +2478,15 @@ static FAST_FUNC void bc_result_free(void *result)
BcResult *r = (BcResult *) result;
switch (r->t) {
case BC_RESULT_TEMP:
case BC_RESULT_IBASE:
case BC_RESULT_SCALE:
case BC_RESULT_OBASE:
case XC_RESULT_TEMP:
case XC_RESULT_IBASE:
case XC_RESULT_SCALE:
case XC_RESULT_OBASE:
bc_num_free(&r->d.n);
break;
case BC_RESULT_VAR:
case BC_RESULT_ARRAY:
case BC_RESULT_ARRAY_ELEM:
case XC_RESULT_VAR:
case XC_RESULT_ARRAY:
case XC_RESULT_ARRAY_ELEM:
free(r->d.id.name);
break;
default:
@ -5086,14 +5086,14 @@ static BcVec* bc_program_search(char *id, bool var)
static BC_STATUS zbc_program_num(BcResult *r, BcNum **num, bool hex)
{
switch (r->t) {
case BC_RESULT_STR:
case BC_RESULT_TEMP:
case BC_RESULT_IBASE:
case BC_RESULT_SCALE:
case BC_RESULT_OBASE:
case XC_RESULT_STR:
case XC_RESULT_TEMP:
case XC_RESULT_IBASE:
case XC_RESULT_SCALE:
case XC_RESULT_OBASE:
*num = &r->d.n;
break;
case BC_RESULT_CONSTANT: {
case XC_RESULT_CONSTANT: {
BcStatus s;
char *str;
unsigned base_t;
@ -5112,17 +5112,17 @@ static BC_STATUS zbc_program_num(BcResult *r, BcNum **num, bool hex)
RETURN_STATUS(s);
}
*num = &r->d.n;
r->t = BC_RESULT_TEMP;
r->t = XC_RESULT_TEMP;
break;
}
case BC_RESULT_VAR:
case BC_RESULT_ARRAY:
case BC_RESULT_ARRAY_ELEM: {
case XC_RESULT_VAR:
case XC_RESULT_ARRAY:
case XC_RESULT_ARRAY_ELEM: {
BcVec *v;
v = bc_program_search(r->d.id.name, r->t == BC_RESULT_VAR);
v = bc_program_search(r->d.id.name, r->t == XC_RESULT_VAR);
if (r->t == BC_RESULT_ARRAY_ELEM) {
if (r->t == XC_RESULT_ARRAY_ELEM) {
v = bc_vec_top(v);
if (v->len <= r->d.id.idx) bc_array_expand(v, r->d.id.idx + 1);
*num = bc_vec_item(v, r->d.id.idx);
@ -5164,7 +5164,7 @@ static BC_STATUS zbc_program_binOpPrep(BcResult **l, BcNum **ln,
lt = (*l)->t;
rt = (*r)->t;
hex = assign && (lt == BC_RESULT_IBASE || lt == BC_RESULT_OBASE);
hex = assign && (lt == XC_RESULT_IBASE || lt == XC_RESULT_OBASE);
s = zbc_program_num(*l, ln, false);
if (s) RETURN_STATUS(s);
@ -5173,12 +5173,12 @@ static BC_STATUS zbc_program_binOpPrep(BcResult **l, BcNum **ln,
// We run this again under these conditions in case any vector has been
// reallocated out from under the BcNums or arrays we had.
if (lt == rt && (lt == BC_RESULT_VAR || lt == BC_RESULT_ARRAY_ELEM)) {
if (lt == rt && (lt == XC_RESULT_VAR || lt == XC_RESULT_ARRAY_ELEM)) {
s = zbc_program_num(*l, ln, false);
if (s) RETURN_STATUS(s);
}
if (!BC_PROG_NUM((*l), (*ln)) && (!assign || (*l)->t != BC_RESULT_VAR))
if (!BC_PROG_NUM((*l), (*ln)) && (!assign || (*l)->t != XC_RESULT_VAR))
RETURN_STATUS(bc_error_variable_is_wrong_type());
if (!assign && !BC_PROG_NUM((*r), (*ln)))
RETURN_STATUS(bc_error_variable_is_wrong_type());
@ -5189,7 +5189,7 @@ static BC_STATUS zbc_program_binOpPrep(BcResult **l, BcNum **ln,
static void bc_program_binOpRetire(BcResult *r)
{
r->t = BC_RESULT_TEMP;
r->t = XC_RESULT_TEMP;
bc_vec_pop(&G.prog.results);
bc_result_pop_and_push(r);
}
@ -5599,7 +5599,7 @@ static BC_STATUS zbc_program_print(char inst, size_t idx)
} else {
char *str;
idx = (r->t == BC_RESULT_STR) ? r->d.id.idx : num->rdx;
idx = (r->t == XC_RESULT_STR) ? r->d.id.idx : num->rdx;
str = *bc_program_str(idx);
if (inst == XC_INST_PRINT_STR) {
@ -5635,7 +5635,7 @@ static BC_STATUS zbc_program_negate(void)
bc_num_copy(&res.d.n, num);
if (res.d.n.len) res.d.n.neg = !res.d.n.neg;
bc_program_retire(&res, BC_RESULT_TEMP);
bc_program_retire(&res, XC_RESULT_TEMP);
RETURN_STATUS(s);
}
@ -5698,7 +5698,7 @@ static BC_STATUS zdc_program_assignStr(BcResult *r, BcVec *v, bool push)
memset(&n2, 0, sizeof(BcNum));
n2.rdx = res.d.id.idx = r->d.id.idx;
res.t = BC_RESULT_STR;
res.t = XC_RESULT_STR;
if (!push) {
if (!STACK_HAS_MORE_THAN(&G.prog.results, 1))
@ -5726,14 +5726,14 @@ static BC_STATUS zbc_program_copyToVar(char *name, bool var)
RETURN_STATUS(bc_error_stack_has_too_few_elements());
ptr = bc_vec_top(&G.prog.results);
if ((ptr->t == BC_RESULT_ARRAY) != !var)
if ((ptr->t == XC_RESULT_ARRAY) != !var)
RETURN_STATUS(bc_error_variable_is_wrong_type());
v = bc_program_search(name, var);
#if ENABLE_DC
if (ptr->t == BC_RESULT_STR && !var)
if (ptr->t == XC_RESULT_STR && !var)
RETURN_STATUS(bc_error_variable_is_wrong_type());
if (ptr->t == BC_RESULT_STR)
if (ptr->t == XC_RESULT_STR)
RETURN_STATUS(zdc_program_assignStr(ptr, v, true));
#endif
@ -5769,14 +5769,14 @@ static BC_STATUS zbc_program_assign(char inst)
s = zbc_program_binOpPrep(&left, &l, &right, &r, assign);
if (s) RETURN_STATUS(s);
ib = left->t == BC_RESULT_IBASE;
sc = left->t == BC_RESULT_SCALE;
ib = left->t == XC_RESULT_IBASE;
sc = left->t == XC_RESULT_SCALE;
#if ENABLE_DC
if (right->t == BC_RESULT_STR) {
if (right->t == XC_RESULT_STR) {
BcVec *v;
if (left->t != BC_RESULT_VAR)
if (left->t != XC_RESULT_VAR)
RETURN_STATUS(bc_error_variable_is_wrong_type());
v = bc_program_search(left->d.id.name, true);
@ -5784,7 +5784,7 @@ static BC_STATUS zbc_program_assign(char inst)
}
#endif
if (left->t == BC_RESULT_CONSTANT || left->t == BC_RESULT_TEMP)
if (left->t == XC_RESULT_CONSTANT || left->t == XC_RESULT_TEMP)
RETURN_STATUS(bc_error("bad assignment:"
" left side must be variable"
" or array element"
@ -5805,11 +5805,11 @@ static BC_STATUS zbc_program_assign(char inst)
bc_num_copy(l, r);
#endif
if (ib || sc || left->t == BC_RESULT_OBASE) {
if (ib || sc || left->t == XC_RESULT_OBASE) {
static const char *const msg[] = {
"bad ibase; must be [2,16]", //BC_RESULT_IBASE
"bad obase; must be [2,"BC_MAX_OBASE_STR"]", //BC_RESULT_OBASE
"bad scale; must be [0,"BC_MAX_SCALE_STR"]", //BC_RESULT_SCALE
"bad ibase; must be [2,16]", //XC_RESULT_IBASE
"bad obase; must be [2,"BC_MAX_OBASE_STR"]", //XC_RESULT_OBASE
"bad scale; must be [0,"BC_MAX_SCALE_STR"]", //XC_RESULT_SCALE
};
size_t *ptr;
size_t max;
@ -5817,7 +5817,7 @@ static BC_STATUS zbc_program_assign(char inst)
s = zbc_num_ulong(l, &val);
if (s) RETURN_STATUS(s);
s = left->t - BC_RESULT_IBASE;
s = left->t - XC_RESULT_IBASE;
if (sc) {
max = BC_MAX_SCALE;
ptr = &G.prog.scale;
@ -5854,7 +5854,7 @@ static BC_STATUS bc_program_pushVar(char *code, size_t *bgn,
BcResult r;
char *name = bc_program_name(code, bgn);
r.t = BC_RESULT_VAR;
r.t = XC_RESULT_VAR;
r.d.id.name = name;
#if ENABLE_DC
@ -5868,11 +5868,11 @@ static BC_STATUS bc_program_pushVar(char *code, size_t *bgn,
}
if (!BC_PROG_STR(num)) {
r.t = BC_RESULT_TEMP;
r.t = XC_RESULT_TEMP;
bc_num_init_DEF_SIZE(&r.d.n);
bc_num_copy(&r.d.n, num);
} else {
r.t = BC_RESULT_STR;
r.t = XC_RESULT_STR;
r.d.id.idx = num->rdx;
}
@ -5895,7 +5895,7 @@ static BC_STATUS zbc_program_pushArray(char *code, size_t *bgn, char inst)
r.d.id.name = bc_program_name(code, bgn);
if (inst == XC_INST_ARRAY) {
r.t = BC_RESULT_ARRAY;
r.t = XC_RESULT_ARRAY;
bc_vec_push(&G.prog.results, &r);
} else {
BcResult *operand;
@ -5912,7 +5912,7 @@ static BC_STATUS zbc_program_pushArray(char *code, size_t *bgn, char inst)
}
r.d.id.idx = (size_t) temp;
bc_program_retire(&r, BC_RESULT_ARRAY_ELEM);
bc_program_retire(&r, XC_RESULT_ARRAY_ELEM);
}
err:
if (s) free(r.d.id.name);
@ -5932,7 +5932,7 @@ static BC_STATUS zbc_program_incdec(char inst)
if (s) RETURN_STATUS(s);
if (inst == BC_INST_INC_POST || inst == BC_INST_DEC_POST) {
copy.t = BC_RESULT_TEMP;
copy.t = XC_RESULT_TEMP;
bc_num_init(&copy.d.n, num->len);
bc_num_copy(&copy.d.n, num);
}
@ -5981,7 +5981,7 @@ static BC_STATUS zbc_program_call(char *code, size_t *idx)
a = bc_vec_item(&func->autos, nparams - 1 - i);
arg = bc_vec_top(&G.prog.results);
if ((!a->idx) != (arg->t == BC_RESULT_ARRAY) || arg->t == BC_RESULT_STR)
if ((!a->idx) != (arg->t == XC_RESULT_ARRAY) || arg->t == XC_RESULT_STR)
RETURN_STATUS(bc_error_variable_is_wrong_type());
s = zbc_program_copyToVar(a->name, a->idx);
@ -6022,7 +6022,7 @@ static BC_STATUS zbc_program_return(char inst)
RETURN_STATUS(bc_error_stack_has_too_few_elements());
f = bc_program_func(ip->func);
res.t = BC_RESULT_TEMP;
res.t = XC_RESULT_TEMP;
if (inst == XC_INST_RET) {
BcStatus s;
@ -6098,14 +6098,14 @@ static BC_STATUS zbc_program_builtin(char inst)
if (inst == XC_INST_SQRT)
s = zbc_num_sqrt(num, &res.d.n, G.prog.scale);
#if ENABLE_BC
else if (len != 0 && opnd->t == BC_RESULT_ARRAY) {
else if (len != 0 && opnd->t == XC_RESULT_ARRAY) {
bc_num_ulong2num(&res.d.n, (unsigned long) ((BcVec *) num)->len);
}
#endif
#if ENABLE_DC
else if (len != 0 && !BC_PROG_NUM(opnd, num)) {
char **str;
size_t idx = opnd->t == BC_RESULT_STR ? opnd->d.id.idx : num->rdx;
size_t idx = opnd->t == XC_RESULT_STR ? opnd->d.id.idx : num->rdx;
str = bc_program_str(idx);
bc_num_ulong2num(&res.d.n, strlen(*str));
@ -6115,7 +6115,7 @@ static BC_STATUS zbc_program_builtin(char inst)
bc_num_ulong2num(&res.d.n, len ? bc_program_len(num) : bc_program_scale(num));
}
bc_program_retire(&res, BC_RESULT_TEMP);
bc_program_retire(&res, XC_RESULT_TEMP);
RETURN_STATUS(s);
}
@ -6138,7 +6138,7 @@ static BC_STATUS zdc_program_divmod(void)
if (s) goto err;
bc_program_binOpRetire(&res2);
res.t = BC_RESULT_TEMP;
res.t = XC_RESULT_TEMP;
bc_vec_push(&G.prog.results, &res);
RETURN_STATUS(s);
@ -6167,7 +6167,7 @@ static BC_STATUS zdc_program_modexp(void)
RETURN_STATUS(bc_error_variable_is_wrong_type());
// Make sure that the values have their pointers updated, if necessary.
if (r1->t == BC_RESULT_VAR || r1->t == BC_RESULT_ARRAY_ELEM) {
if (r1->t == XC_RESULT_VAR || r1->t == XC_RESULT_ARRAY_ELEM) {
if (r1->t == r2->t) {
s = zbc_program_num(r2, &n2, false);
if (s) RETURN_STATUS(s);
@ -6197,7 +6197,7 @@ static void dc_program_stackLen(void)
BcResult res;
size_t len = G.prog.results.len;
res.t = BC_RESULT_TEMP;
res.t = XC_RESULT_TEMP;
bc_num_init_DEF_SIZE(&res.d.n);
bc_num_ulong2num(&res.d.n, len);
@ -6244,7 +6244,7 @@ static BC_STATUS zdc_program_asciify(void)
bc_num_free(&n);
} else {
char *sp;
idx = (r->t == BC_RESULT_STR) ? r->d.id.idx : num->rdx;
idx = (r->t == XC_RESULT_STR) ? r->d.id.idx : num->rdx;
sp = *bc_program_str(idx);
c = sp[0];
}
@ -6260,7 +6260,7 @@ static BC_STATUS zdc_program_asciify(void)
//str[1] = '\0'; - already is
bc_vec_push(&G.prog.strs, &str);
dup:
res.t = BC_RESULT_STR;
res.t = XC_RESULT_STR;
res.d.id.idx = idx;
bc_result_pop_and_push(&res);
@ -6289,7 +6289,7 @@ static BC_STATUS zdc_program_printStream(void)
s = zbc_num_printNum(n, 0x100, 1, dc_num_printChar);
} else {
char *str;
idx = (r->t == BC_RESULT_STR) ? r->d.id.idx : n->rdx;
idx = (r->t == XC_RESULT_STR) ? r->d.id.idx : n->rdx;
str = *bc_program_str(idx);
fputs(str, stdout);
}
@ -6373,9 +6373,9 @@ static BC_STATUS zdc_program_execStr(char *code, size_t *bgn, bool cond)
sidx = n->rdx;
} else {
if (r->t == BC_RESULT_STR) {
if (r->t == XC_RESULT_STR) {
sidx = r->d.id.idx;
} else if (r->t == BC_RESULT_VAR) {
} else if (r->t == XC_RESULT_VAR) {
BcNum *n;
s = zbc_program_num(r, &n, false);
if (s || !BC_PROG_STR(n)) goto exit;
@ -6434,7 +6434,7 @@ static void bc_program_pushGlobal(char inst)
BcResult res;
unsigned long val;
res.t = inst - XC_INST_IBASE + BC_RESULT_IBASE;
res.t = inst - XC_INST_IBASE + XC_RESULT_IBASE;
if (inst == XC_INST_IBASE)
val = (unsigned long) G.prog.ib_t;
else if (inst == XC_INST_SCALE)
@ -6550,7 +6550,7 @@ static BC_STATUS zbc_program_exec(void)
break;
case XC_INST_NUM:
dbg_exec("XC_INST_NUM:");
r.t = BC_RESULT_CONSTANT;
r.t = XC_RESULT_CONSTANT;
r.d.id.idx = bc_program_index(code, &ip->inst_idx);
bc_vec_push(&G.prog.results, &r);
break;
@ -6569,7 +6569,7 @@ static BC_STATUS zbc_program_exec(void)
break;
case XC_INST_STR:
dbg_exec("XC_INST_STR:");
r.t = BC_RESULT_STR;
r.t = XC_RESULT_STR;
r.d.id.idx = bc_program_index(code, &ip->inst_idx);
bc_vec_push(&G.prog.results, &r);
break;
@ -6591,7 +6591,7 @@ static BC_STATUS zbc_program_exec(void)
if (bc_num_cmp(num, &G.prog.zero) == 0)
bc_num_one(&r.d.n);
//else bc_num_zero(&r.d.n); - already is
bc_program_retire(&r, BC_RESULT_TEMP);
bc_program_retire(&r, XC_RESULT_TEMP);
break;
}
case XC_INST_NEG: