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authorDenys Vlasenko <vda.linux@googlemail.com>2018-12-19 19:35:40 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2018-12-19 19:38:51 +0100
commitfa2107918386d8262356120f86b846c2c7493b73 (patch)
tree100b026506b60b7e035f774c03ddd6746146e9cb /miscutils
parent44dbe675ddbcffb37e98358599610b5b81ea0644 (diff)
downloadbusybox-fa2107918386d8262356120f86b846c2c7493b73.tar.gz
bc: rename dc-specific functions, simplify zdc_program_execStr() a bit
function old new delta zbc_program_execStr 496 - -496 zdc_program_execStr - 491 +491 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils')
-rw-r--r--miscutils/bc.c95
1 files changed, 47 insertions, 48 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c
index 6e15a8c26..fa24f0c9f 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -2449,7 +2449,7 @@ static BC_STATUS zbc_num_divmod(BcNum *a, BcNum *b, BcNum *c, BcNum *d,
#define zbc_num_divmod(...) (zbc_num_divmod(__VA_ARGS__) COMMA_SUCCESS)
#if ENABLE_DC
-static BC_STATUS zbc_num_modexp(BcNum *a, BcNum *b, BcNum *c, BcNum *restrict d)
+static BC_STATUS zdc_num_modexp(BcNum *a, BcNum *b, BcNum *c, BcNum *restrict d)
{
BcStatus s;
BcNum base, exp, two, temp;
@@ -2498,7 +2498,7 @@ static BC_STATUS zbc_num_modexp(BcNum *a, BcNum *b, BcNum *c, BcNum *restrict d)
bc_num_free(&base);
RETURN_STATUS(s);
}
-#define zbc_num_modexp(...) (zbc_num_modexp(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_num_modexp(...) (zdc_num_modexp(__VA_ARGS__) COMMA_SUCCESS)
#endif // ENABLE_DC
#if ENABLE_BC
@@ -2593,7 +2593,7 @@ static FAST_FUNC void bc_string_free(void *string)
}
#if ENABLE_DC
-static void bc_result_copy(BcResult *d, BcResult *src)
+static void dc_result_copy(BcResult *d, BcResult *src)
{
d->t = src->t;
@@ -3589,7 +3589,7 @@ static void bc_parse_free(BcParse *p)
bc_lex_free(&p->l);
}
-static void bc_parse_create(BcParse *p, size_t func)
+static void bc_parse_create(BcParse *p, size_t fidx)
{
memset(p, 0, sizeof(BcParse));
@@ -3598,8 +3598,8 @@ static void bc_parse_create(BcParse *p, size_t func)
bc_vec_init(&p->conds, sizeof(size_t), NULL);
bc_vec_init(&p->ops, sizeof(BcLexType), NULL);
- p->fidx = func;
- p->func = bc_program_func(func);
+ p->fidx = fidx;
+ p->func = bc_program_func(fidx);
}
#if ENABLE_BC
@@ -5295,7 +5295,7 @@ static void bc_num_printNewline(void)
}
#if ENABLE_DC
-static FAST_FUNC void bc_num_printChar(size_t num, size_t width, bool radix)
+static FAST_FUNC void dc_num_printChar(size_t num, size_t width, bool radix)
{
(void) radix;
bb_putchar((char) num);
@@ -5590,7 +5590,7 @@ static BC_STATUS zbc_program_logical(char inst)
#define zbc_program_logical(...) (zbc_program_logical(__VA_ARGS__) COMMA_SUCCESS)
#if ENABLE_DC
-static BC_STATUS zbc_program_assignStr(BcResult *r, BcVec *v, bool push)
+static BC_STATUS zdc_program_assignStr(BcResult *r, BcVec *v, bool push)
{
BcNum n2;
BcResult res;
@@ -5613,7 +5613,7 @@ static BC_STATUS zbc_program_assignStr(BcResult *r, BcVec *v, bool push)
RETURN_STATUS(BC_STATUS_SUCCESS);
}
-#define zbc_program_assignStr(...) (zbc_program_assignStr(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_assignStr(...) (zdc_program_assignStr(__VA_ARGS__) COMMA_SUCCESS)
#endif // ENABLE_DC
static BC_STATUS zbc_program_copyToVar(char *name, bool var)
@@ -5635,7 +5635,7 @@ static BC_STATUS zbc_program_copyToVar(char *name, bool var)
if (ptr->t == BC_RESULT_STR && !var)
RETURN_STATUS(bc_error_variable_is_wrong_type());
if (ptr->t == BC_RESULT_STR)
- RETURN_STATUS(zbc_program_assignStr(ptr, v, true));
+ RETURN_STATUS(zdc_program_assignStr(ptr, v, true));
#endif
s = zbc_program_num(ptr, &n, false);
@@ -5680,7 +5680,7 @@ static BC_STATUS zbc_program_assign(char inst)
RETURN_STATUS(bc_error_variable_is_wrong_type());
v = bc_program_search(left->d.id.name, true);
- RETURN_STATUS(zbc_program_assignStr(right, v, false));
+ RETURN_STATUS(zdc_program_assignStr(right, v, false));
}
#endif
@@ -6026,7 +6026,7 @@ static BC_STATUS zbc_program_builtin(char inst)
#define zbc_program_builtin(...) (zbc_program_builtin(__VA_ARGS__) COMMA_SUCCESS)
#if ENABLE_DC
-static BC_STATUS zbc_program_divmod(void)
+static BC_STATUS zdc_program_divmod(void)
{
BcStatus s;
BcResult *opd1, *opd2, res, res2;
@@ -6051,9 +6051,9 @@ static BC_STATUS zbc_program_divmod(void)
bc_num_free(&res.d.n);
RETURN_STATUS(s);
}
-#define zbc_program_divmod(...) (zbc_program_divmod(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_divmod(...) (zdc_program_divmod(__VA_ARGS__) COMMA_SUCCESS)
-static BC_STATUS zbc_program_modexp(void)
+static BC_STATUS zdc_program_modexp(void)
{
BcStatus s;
BcResult *r1, *r2, *r3, res;
@@ -6083,7 +6083,7 @@ static BC_STATUS zbc_program_modexp(void)
}
bc_num_init(&res.d.n, n3->len);
- s = zbc_num_modexp(n1, n2, n3, &res.d.n);
+ s = zdc_num_modexp(n1, n2, n3, &res.d.n);
if (s) goto err;
bc_vec_pop(&G.prog.results);
@@ -6094,9 +6094,9 @@ static BC_STATUS zbc_program_modexp(void)
bc_num_free(&res.d.n);
RETURN_STATUS(s);
}
-#define zbc_program_modexp(...) (zbc_program_modexp(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_modexp(...) (zdc_program_modexp(__VA_ARGS__) COMMA_SUCCESS)
-static void bc_program_stackLen(void)
+static void dc_program_stackLen(void)
{
BcResult res;
size_t len = G.prog.results.len;
@@ -6108,7 +6108,7 @@ static void bc_program_stackLen(void)
bc_vec_push(&G.prog.results, &res);
}
-static BC_STATUS zbc_program_asciify(void)
+static BC_STATUS zdc_program_asciify(void)
{
BcStatus s;
BcResult *r, res;
@@ -6179,36 +6179,37 @@ static BC_STATUS zbc_program_asciify(void)
bc_num_free(&n);
RETURN_STATUS(s);
}
-#define zbc_program_asciify(...) (zbc_program_asciify(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_asciify(...) (zdc_program_asciify(__VA_ARGS__) COMMA_SUCCESS)
-static BC_STATUS zbc_program_printStream(void)
+static BC_STATUS zdc_program_printStream(void)
{
BcStatus s;
BcResult *r;
- BcNum *n = NULL;
+ BcNum *n;
size_t idx;
- char *str;
if (!STACK_HAS_MORE_THAN(&G.prog.results, 0))
RETURN_STATUS(bc_error_stack_has_too_few_elements());
r = bc_vec_top(&G.prog.results);
+ n = NULL; // is this needed?
s = zbc_program_num(r, &n, false);
if (s) RETURN_STATUS(s);
if (BC_PROG_NUM(r, n)) {
- s = zbc_num_printNum(n, 0x100, 1, bc_num_printChar);
+ 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;
str = *bc_program_str(idx);
- printf("%s", str);
+ fputs(str, stdout);
}
RETURN_STATUS(s);
}
-#define zbc_program_printStream(...) (zbc_program_printStream(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_printStream(...) (zdc_program_printStream(__VA_ARGS__) COMMA_SUCCESS)
-static BC_STATUS zbc_program_nquit(void)
+static BC_STATUS zdc_program_nquit(void)
{
BcStatus s;
BcResult *opnd;
@@ -6232,15 +6233,13 @@ static BC_STATUS zbc_program_nquit(void)
RETURN_STATUS(s);
}
-#define zbc_program_nquit(...) (zbc_program_nquit(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_nquit(...) (zdc_program_nquit(__VA_ARGS__) COMMA_SUCCESS)
-static BC_STATUS zbc_program_execStr(char *code, size_t *bgn, bool cond)
+static BC_STATUS zdc_program_execStr(char *code, size_t *bgn, bool cond)
{
BcStatus s = BC_STATUS_SUCCESS;
BcResult *r;
- char **str;
BcFunc *f;
- BcParse prs;
BcInstPtr ip;
size_t fidx, sidx;
@@ -6298,21 +6297,25 @@ static BC_STATUS zbc_program_execStr(char *code, size_t *bgn, bool cond)
fidx = sidx + BC_PROG_REQ_FUNCS;
- str = bc_program_str(sidx);
f = bc_program_func(fidx);
if (f->code.len == 0) {
+ BcParse prs;
+ char *str;
+
bc_parse_create(&prs, fidx);
- s = zbc_parse_text_init(&prs, *str);
+ str = *bc_program_str(sidx);
+ s = zbc_parse_text_init(&prs, str);
if (s) goto err;
s = zcommon_parse_expr(&prs, BC_PARSE_NOCALL);
if (s) goto err;
-
if (prs.l.t.t != BC_LEX_EOF) {
s = bc_error_bad_expression();
- goto err;
+ err:
+ bc_parse_free(&prs);
+ bc_vec_pop_all(&f->code);
+ goto exit;
}
-
bc_parse_free(&prs);
}
@@ -6324,15 +6327,11 @@ static BC_STATUS zbc_program_execStr(char *code, size_t *bgn, bool cond)
bc_vec_push(&G.prog.exestack, &ip);
RETURN_STATUS(BC_STATUS_SUCCESS);
- err:
- bc_parse_free(&prs);
- f = bc_program_func(fidx);
- bc_vec_pop_all(&f->code);
exit:
bc_vec_pop(&G.prog.results);
RETURN_STATUS(s);
}
-#define zbc_program_execStr(...) (zbc_program_execStr(__VA_ARGS__) COMMA_SUCCESS)
+#define zdc_program_execStr(...) (zdc_program_execStr(__VA_ARGS__) COMMA_SUCCESS)
#endif // ENABLE_DC
static void bc_program_pushGlobal(char inst)
@@ -6515,14 +6514,14 @@ static BC_STATUS zbc_program_exec(void)
break;
#if ENABLE_DC
case BC_INST_MODEXP:
- s = zbc_program_modexp();
+ s = zdc_program_modexp();
break;
case BC_INST_DIVMOD:
- s = zbc_program_divmod();
+ s = zdc_program_divmod();
break;
case BC_INST_EXECUTE:
case BC_INST_EXEC_COND:
- s = zbc_program_execStr(code, &ip->idx, inst == BC_INST_EXEC_COND);
+ s = zdc_program_execStr(code, &ip->idx, inst == BC_INST_EXEC_COND);
goto read_updated_ip;
case BC_INST_PRINT_STACK: {
size_t idx;
@@ -6536,13 +6535,13 @@ static BC_STATUS zbc_program_exec(void)
bc_vec_pop_all(&G.prog.results);
break;
case BC_INST_STACK_LEN:
- bc_program_stackLen();
+ dc_program_stackLen();
break;
case BC_INST_DUPLICATE:
if (!STACK_HAS_MORE_THAN(&G.prog.results, 0))
RETURN_STATUS(bc_error_stack_has_too_few_elements());
ptr = bc_vec_top(&G.prog.results);
- bc_result_copy(&r, ptr);
+ dc_result_copy(&r, ptr);
bc_vec_push(&G.prog.results, &r);
break;
case BC_INST_SWAP: {
@@ -6557,10 +6556,10 @@ static BC_STATUS zbc_program_exec(void)
break;
}
case BC_INST_ASCIIFY:
- s = zbc_program_asciify();
+ s = zdc_program_asciify();
break;
case BC_INST_PRINT_STREAM:
- s = zbc_program_printStream();
+ s = zdc_program_printStream();
break;
case BC_INST_LOAD:
case BC_INST_PUSH_VAR: {
@@ -6581,7 +6580,7 @@ static BC_STATUS zbc_program_exec(void)
bc_vec_npop(&G.prog.exestack, 2);
goto read_updated_ip;
case BC_INST_NQUIT:
- s = zbc_program_nquit();
+ s = zdc_program_nquit();
//goto read_updated_ip; - just fall through to it
#endif // ENABLE_DC
read_updated_ip: