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bc: ^C on input line exits (unlike ^C during calculations, which does not)

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function                                             old     new   delta
xc_read_line                                         353     344      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2021-01-04 14:41:20 +01:00
parent 4455cffa32
commit 0197fbffb7
1 changed files with 10 additions and 10 deletions
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20
miscutils/bc.c
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@@ -1827,7 +1827,7 @@ static FAST_FUNC BC_STATUS zbc_num_k(BcNum *restrict a, BcNum *restrict b,
#define zbc_num_k(...) (zbc_num_k(__VA_ARGS__) COMMA_SUCCESS)
{
BcStatus s;
size_t max = BC_MAX(a->len, b->len), max2 = (max + 1) / 2;
size_t max, max2;
BcNum l1, h1, l2, h2, m2, m1, z0, z1, z2, temp;
bool aone;
@@ -1877,6 +1877,7 @@ static FAST_FUNC BC_STATUS zbc_num_k(BcNum *restrict a, BcNum *restrict b,
RETURN_STATUS(BC_STATUS_SUCCESS);
}
max = BC_MAX(a->len, b->len);
bc_num_init(&l1, max);
bc_num_init(&h1, max);
bc_num_init(&l2, max);
@@ -1888,6 +1889,7 @@ static FAST_FUNC BC_STATUS zbc_num_k(BcNum *restrict a, BcNum *restrict b,
bc_num_init(&z2, max);
bc_num_init(&temp, max + max);
max2 = (max + 1) / 2;
bc_num_split(a, max2, &l1, &h1);
bc_num_split(b, max2, &l2, &h2);
@@ -2524,9 +2526,6 @@ static void xc_read_line(BcVec *vec, FILE *fp)
#if ENABLE_FEATURE_BC_INTERACTIVE
if (G_interrupt) { // ^C was pressed
# if ENABLE_FEATURE_EDITING
intr:
# endif
if (fp != stdin) {
// ^C while running a script (bc SCRIPT): die.
// We do not return to interactive prompt:
@@ -2537,11 +2536,11 @@ static void xc_read_line(BcVec *vec, FILE *fp)
// the shell would be unexpected.
xfunc_die();
}
// ^C while interactive input
// There was ^C while running calculations
G_interrupt = 0;
// GNU bc says "interrupted execution."
// GNU bc says "interrupted execution." (to stdout, not stderr)
// GNU dc says "Interrupt!"
fputs("\ninterrupted execution\n", stderr);
puts("\ninterrupted execution");
}
# if ENABLE_FEATURE_EDITING
@@ -2552,9 +2551,10 @@ static void xc_read_line(BcVec *vec, FILE *fp)
# define line_buf bb_common_bufsiz1
n = read_line_input(G.line_input_state, "", line_buf, COMMON_BUFSIZE);
if (n <= 0) { // read errors or EOF, or ^D, or ^C
if (n == 0) // ^C
goto intr;
bc_vec_pushZeroByte(vec); // ^D or EOF (or error)
//GNU bc prints this on ^C:
//if (n == 0) // ^C
// puts("(interrupt) Exiting bc.");
bc_vec_pushZeroByte(vec);
return;
}
i = 0;