git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@2549
4a8a32a2-be11-0410-ad9d-
d568d2c75423
* as/z80/Makefile: fix permanent rebuild of z80
* sim/ucsim/gui.src/Makefile.in: target "install" builds the same packages as target "all"
+ * support/regression/tests/bitfields.c: added Johan's bitfields.c
2003-04-18 Kevin Vigor <kevin@vigor.nu>
--- /dev/null
+/** Bitfield tests.
+
+*/
+#include <testfwk.h>
+
+struct {
+ char c0_3 : 3;
+ char c3_5 : 5;
+} c_bitfield;
+
+struct {
+ int i0_7 : 7;
+ int i7_9 : 9;
+} i_bitfield;
+
+struct {
+ long l0_7 : 7;
+ long l7_10 : 10;
+ long l17_15 : 15;
+} l_bitfield;
+
+void
+testBitfields(void)
+{
+ c_bitfield.c0_3 = 2;
+ c_bitfield.c3_5 = 3;
+ ASSERT(*(char *)(&c_bitfield) == (2 + (3<<3)) );
+
+ i_bitfield.i0_7 = 23;
+ i_bitfield.i7_9 = 234;
+ ASSERT(*(int *)(&i_bitfield) == (23 + (234<<7)) );
+
+ l_bitfield.l0_7 = 23;
+ l_bitfield.l7_10 = 234;
+ l_bitfield.l17_15 = 2345;
+ ASSERT(*(long *)(&l_bitfield) == (23 + (234<<7) + (2345<<17)) );
+}