diff options
Diffstat (limited to 'miscutils/dc.c')
| -rw-r--r-- | miscutils/dc.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/miscutils/dc.c b/miscutils/dc.c index f9020b360..c7b43ea0a 100644 --- a/miscutils/dc.c +++ b/miscutils/dc.c @@ -11,6 +11,7 @@ static double stack[100]; static unsigned int pointer; +static unsigned char base; static void push(double a) { @@ -70,9 +71,38 @@ static void not(void) push(~(unsigned int) pop()); } +static void set_output_base(void) +{ + base=(unsigned char)pop(); + if ((base != 10) && (base != 16)) { + fprintf(stderr, "Error: base = %d is not supported.\n", base); + base=10; + } +} + +static void print_base(double print) +{ + if (base == 16) + printf("%x\n", (unsigned int)print); + else + printf("%g\n", print); +} + +static void print_stack_no_pop(void) +{ + unsigned int i=pointer; + while (i) + print_base(stack[--i]); +} + +static void print_no_pop(void) +{ + print_base(stack[pointer-1]); +} + static void print(void) { - printf("%g\n", pop()); + print_base(pop()); } struct op { @@ -93,6 +123,9 @@ static const struct op operators[] = { {"or", or}, {"not", not}, {"eor", eor}, + {"p", print_no_pop}, + {"f", print_stack_no_pop}, + {"o", set_output_base}, {0, 0} }; |