1 files changed, 12 insertions, 7 deletions
diff --git a/miscutils/dc.c b/miscutils/dc.c
index 5119c1383..5aef64b60 100644
--- a/miscutils/dc.c
+++ b/miscutils/dc.c
@@ -94,13 +94,18 @@ static void mod(void)
 {
        data_t d = pop();
-        //if (d == 0) {
+        /* compat with dc (GNU bc 1.07.1) 1.4.1:
-        //      bb_error_msg("remainder by zero");
+         * $ dc -e '4 0 % p'
-        //      pop();
+         * dc: remainder by zero
-        //      push(0);
+         * 0
-        //      return;
+         */
-        //}
+        if (d == 0) {
-        //^^^^ without this, we simply get SIGFPE and die
+                bb_error_msg("remainder by zero");
+                pop();
+                push(0);
+                return;
+        }
+        /* ^^^^ without this, we simply get SIGFPE and die */
        push((data_t) pop() % d);
 }

diff --git a/miscutils/dc.c b/miscutils/dc.c index 5119c1383..5aef64b60 100644 --- a/miscutils/dc.c +++ b/miscutils/dc.c
@@ -94,13 +94,18 @@ static void mod(void)
94	{	94	{
95	data_t d = pop();	95	data_t d = pop();
96		96
97	//if (d == 0) {	97	/* compat with dc (GNU bc 1.07.1) 1.4.1:
98	// bb_error_msg("remainder by zero");	98	* $ dc -e '4 0 % p'
99	// pop();	99	* dc: remainder by zero
100	// push(0);	100	* 0
101	// return;	101	*/
102	//}	102	if (d == 0) {
103	//^^^^ without this, we simply get SIGFPE and die	103	bb_error_msg("remainder by zero");
		104	pop();
		105	push(0);
		106	return;
		107	}
		108	/* ^^^^ without this, we simply get SIGFPE and die */
104		109
105	push((data_t) pop() % d);	110	push((data_t) pop() % d);
106	}	111	}