diff options
Diffstat (limited to 'miscutils/bc.c')
| -rw-r--r-- | miscutils/bc.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 68e3668..4fac2c9 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -5178,6 +5178,7 @@ static void bc_program_binOpRetire(BcResult *r) bc_result_pop_and_push(r); } +// Note: *r and *n need not be initialized by caller static BC_STATUS zbc_program_prep(BcResult **r, BcNum **n) { BcStatus s; @@ -5206,7 +5207,7 @@ static BC_STATUS zbc_program_op(char inst) { BcStatus s; BcResult *opd1, *opd2, res; - BcNum *n1, *n2 = NULL; + BcNum *n1, *n2; s = zbc_program_binOpPrep(&opd1, &n1, &opd2, &n2, false); if (s) RETURN_STATUS(s); @@ -5565,7 +5566,7 @@ static BC_STATUS zbc_program_print(char inst, size_t idx) BcStatus s; BcResult *r; BcNum *num; - bool pop = inst != XC_INST_PRINT; + bool pop = (inst != XC_INST_PRINT); if (!STACK_HAS_MORE_THAN(&G.prog.results, idx)) RETURN_STATUS(bc_error_stack_has_too_few_elements()); @@ -5609,7 +5610,7 @@ static BC_STATUS zbc_program_negate(void) { BcStatus s; BcResult res, *ptr; - BcNum *num = NULL; + BcNum *num; s = zbc_program_prep(&ptr, &num); if (s) RETURN_STATUS(s); @@ -5745,8 +5746,9 @@ static BC_STATUS zbc_program_assign(char inst) { BcStatus s; BcResult *left, *right, res; - BcNum *l = NULL, *r = NULL; - bool assign = inst == XC_INST_ASSIGN, ib, sc; + BcNum *l, *r; + bool assign = (inst == XC_INST_ASSIGN); + bool ib, sc; s = zbc_program_binOpPrep(&left, &l, &right, &r, assign); if (s) RETURN_STATUS(s); @@ -5907,7 +5909,7 @@ static BC_STATUS zbc_program_incdec(char inst) { BcStatus s; BcResult *ptr, res, copy; - BcNum *num = NULL; + BcNum *num; char inst2 = inst; s = zbc_program_prep(&ptr, &num); @@ -5920,9 +5922,9 @@ static BC_STATUS zbc_program_incdec(char inst) } res.t = BC_RESULT_ONE; - inst = inst == BC_INST_INC_PRE || inst == BC_INST_INC_POST ? - BC_INST_ASSIGN_PLUS : - BC_INST_ASSIGN_MINUS; + inst = (inst == BC_INST_INC_PRE || inst == BC_INST_INC_POST) + ? BC_INST_ASSIGN_PLUS + : BC_INST_ASSIGN_MINUS; bc_vec_push(&G.prog.results, &res); s = zbc_program_assign(inst); @@ -6059,9 +6061,9 @@ static BC_STATUS zbc_program_builtin(char inst) { BcStatus s; BcResult *opnd; - BcNum *num = NULL; + BcNum *num; BcResult res; - bool len = inst == XC_INST_LENGTH; + bool len = (inst == XC_INST_LENGTH); if (!STACK_HAS_MORE_THAN(&G.prog.results, 0)) RETURN_STATUS(bc_error_stack_has_too_few_elements()); @@ -6108,7 +6110,7 @@ static BC_STATUS zdc_program_divmod(void) { BcStatus s; BcResult *opd1, *opd2, res, res2; - BcNum *n1, *n2 = NULL; + BcNum *n1, *n2; s = zbc_program_binOpPrep(&opd1, &n1, &opd2, &n2, false); if (s) RETURN_STATUS(s); @@ -6284,7 +6286,7 @@ static BC_STATUS zdc_program_nquit(void) { BcStatus s; BcResult *opnd; - BcNum *num = NULL; + BcNum *num; unsigned long val; s = zbc_program_prep(&opnd, &num); @@ -6432,7 +6434,6 @@ static void bc_program_pushGlobal(char inst) static BC_STATUS zbc_program_exec(void) { BcResult r, *ptr; - BcNum *num; BcInstPtr *ip = bc_vec_top(&G.prog.exestack); BcFunc *func = bc_program_func(ip->func); char *code = func->code.v; @@ -6447,6 +6448,7 @@ static BC_STATUS zbc_program_exec(void) switch (inst) { #if ENABLE_BC case BC_INST_JUMP_ZERO: { + BcNum *num; bool zero; dbg_exec("BC_INST_JUMP_ZERO:"); s = zbc_program_prep(&ptr, &num); @@ -6564,16 +6566,18 @@ static BC_STATUS zbc_program_exec(void) dbg_exec("BC_INST_binaryop:"); s = zbc_program_op(inst); break; - case XC_INST_BOOL_NOT: + case XC_INST_BOOL_NOT: { + BcNum *num; dbg_exec("XC_INST_BOOL_NOT:"); s = zbc_program_prep(&ptr, &num); if (s) RETURN_STATUS(s); bc_num_init_DEF_SIZE(&r.d.n); - if (!bc_num_cmp(num, &G.prog.zero)) + 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); break; + } case XC_INST_NEG: dbg_exec("XC_INST_NEG:"); s = zbc_program_negate(); |