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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-04 06:18:00 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-01-04 06:18:00 +0100 |
| commit | 1db367a8e65a74277360a89885ff7d377b5feb8b (patch) | |
| tree | e911cbe5e1b234e38cd68e63f4a4afea1495e980 /miscutils/bc.c | |
| parent | 6842c6062a201cc34a262b4c450cf8e1374e9e3a (diff) | |
| download | busybox-1db367a8e65a74277360a89885ff7d377b5feb8b.tar.gz | |
dc: fit returning of string
function old new delta
zxc_program_exec 4087 4098 +11
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/bc.c')
| -rw-r--r-- | miscutils/bc.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 1e8056c01..e497b0d02 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -6020,6 +6020,9 @@ static BC_STATUS zbc_program_return(char inst) BcInstPtr *ip = bc_vec_top(&G.prog.exestack); if (inst == XC_INST_RET) { + // bc needs this for e.g. RESULT_CONSTANT ("return 5") + // because bc constants are per-function. + // TODO: maybe avoid if value is already RESULT_TEMP? BcStatus s; BcNum *num; BcResult *operand = bc_vec_top(&G.prog.results); @@ -6458,7 +6461,17 @@ static BC_STATUS zxc_program_exec(void) dbg_exec("inst at %zd:%d results.len:%d", ip->inst_idx - 1, inst, G.prog.results.len); switch (inst) { + case XC_INST_RET: + if (IS_DC) { // end of '?' reached + bc_vec_pop(&G.prog.exestack); + goto read_updated_ip; + } + // bc: fall through #if ENABLE_BC + case BC_INST_RET0: + dbg_exec("BC_INST_RET[0]:"); + s = zbc_program_return(inst); + goto read_updated_ip; case BC_INST_JUMP_ZERO: { BcNum *num; bool zero; @@ -6495,11 +6508,6 @@ static BC_STATUS zxc_program_exec(void) dbg_exec("BC_INST_HALT:"); QUIT_OR_RETURN_TO_MAIN; break; - case XC_INST_RET: - case BC_INST_RET0: - dbg_exec("BC_INST_RET[0]:"); - s = zbc_program_return(inst); - goto read_updated_ip; case XC_INST_BOOL_OR: case XC_INST_BOOL_AND: #endif // ENABLE_BC |