diff options
| -rw-r--r-- | miscutils/bc.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 70db2ce3d..791275c8c 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -736,6 +736,7 @@ typedef struct BcProgram { struct globals { IF_FEATURE_BC_SIGNALS(smallint ttyin;) IF_FEATURE_CLEAN_UP(smallint exiting;) + smallint in_read; char sbgn; char send; @@ -5390,20 +5391,18 @@ static BcStatus bc_program_read(void) BcParse parse; BcVec buf; BcInstPtr ip; - size_t i; - BcFunc *f = bc_program_func(BC_PROG_READ); + BcFunc *f; - for (i = 0; i < G.prog.stack.len; ++i) { - BcInstPtr *ip_ptr = bc_vec_item(&G.prog.stack, i); - if (ip_ptr->func == BC_PROG_READ) - return bc_error_nested_read_call(); - } + if (G.in_read) + return bc_error_nested_read_call(); + f = bc_program_func(BC_PROG_READ); bc_vec_pop_all(&f->code); bc_char_vec_init(&buf); sv_file = G.prog.file; G.prog.file = NULL; + G.in_read = 1; s = bc_read_line(&buf); //if (s) goto io_err; - wrong, nonzero return means EOF, not error @@ -5434,6 +5433,7 @@ static BcStatus bc_program_read(void) exec_err: bc_parse_free(&parse); //io_err: + G.in_read = 0; G.prog.file = sv_file; bc_vec_free(&buf); return s; |