diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2021-02-26 14:48:04 +0100 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2021-02-26 14:48:04 +0100 |
| commit | 1a37aa7a88722f49928f6cd7851476aa4525462d (patch) | |
| tree | 82cd26603c44d729bfc5c548228d54488e3b78de | |
| parent | ace81cd46ce53e60fe702cc1ac857989207e7ac4 (diff) | |
| download | busybox-1a37aa7a88722f49928f6cd7851476aa4525462d.tar.gz | |
dc: document what non-GNU commands do
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | miscutils/bc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 91564099e..cc48ed3fe 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -166,12 +166,12 @@ //////// "\nq - DC_LEX_QUIT "break 2" (if less than 2 levels of macros, exit dc) //////// "\nX - DC_LEX_SCALE_FACTOR pop, push number of fractional digits //////// "\nZ - DC_LEX_LENGTH pop, push number of digits it has (or number of characters in string) -//////// "\na - DC_LEX_ASCIIFY pop, push low-order byte as char or 1st string char -//////// "\n( - DC_LEX_LPAREN ? -//////// "\n{ - DC_LEX_LBRACE ? +//////// "\na - DC_LEX_ASCIIFY pop, push low-order byte as char or 1st char of string +//////// "\n( - DC_LEX_LPAREN (not in GNU) pop, pop, if top-of-stack was less push 1 else push 0 +//////// "\n{ - DC_LEX_LBRACE (not in GNU) pop, pop, if top-of-stack was less-or-equal push 1 else push 0 +//////// "\nG - DC_LEX_EQ_NO_REG (not in GNU) pop, pop, if equal push 1 else push 0 +//////// "\nN - DC_LEX_OP_BOOL_NOT (not in GNU) pop, if 0 push 1 else push 0 //////// "\n_ - XC_LEX_NEG (not a command - starts negative number) -//////// "\nG - DC_LEX_EQ_NO_REG (? GNU dc has no such cmd) -//////// "\nN - DC_LEX_OP_BOOL_NOT (? GNU dc has no such cmd) //////// "\nn - DC_LEX_PRINT_POP pop, print without newline //////// "\nP - DC_LEX_PRINT_STREAM pop, print string or hex bytes //usage: ) |