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To begin with, the application in question is always going to be on the same processor, and the compiler is always gcc, so I'm not concerned about bitfields not being portable.
gcc lays out bitfields such that the first listed field corresponds to least significant bit of a byte. So the following…
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Today I discovered alarming behavior when experimenting with bit fields. For the sake of discussion and simplicity, here's an example program:
#include <stdio.h>
struct Node
{
int a:16 __attribute__ ((packed));
int b:16 __attribute__ ((packed));
unsigned int c:27 __attribute__ ((packed));
…
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Hi,
I have bit field declared this way:
typedef struct morder {
unsigned int targetRegister : 3;
unsigned int targetMethodOfAddressing : 3;
unsigned int originRegister : 3;
unsigned int originMethodOfAddressing : 3;
unsigned int oCode : 4;
} bitset;
I also have int array, and…
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I'm completely ignorant of SQL/databases, but I was chatting with a friend who does a lot of database work about how some databases use a "boolean" field that can take a value of NULL in addition to true and false.
Regarding this, he made a comment along these lines: "To Microsoft's credit, they…
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HI all,
Is there anyway by which we can declare variable specifying bit fields on those which are not any members of structures or unions.If not,then is there anyway by which we can just declare a variable by specifying the number of bits it is permitted to use.
Thanks
maddy
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