Best Way To Copy Complex Structs

[mieskola]

Given the following struct definition:

struct Data
{
int i;
ComplexType c;
};
do either of the following copying methods have a programmatic
advantage? Style?

Data d;
Data e;

d.i = 4;
..
..
..
METHOD 1: e = d;
METHOD 2: memcpy(&e,&d, sizeof(d));

[Rolf Magnus]

mieskola wrote:

Given the following struct definition:

struct Data
{
int i;
ComplexType c;
};
do either of the following copying methods have a programmatic
advantage? Style?

Data d;
Data e;

d.i = 4;
.
.
.
METHOD 1: e = d;
METHOD 2: memcpy(&e,&d, sizeof(d));

The second is only guaranteed to work if ComplexType is a POD. Method 1
works for any assignable type. It's also easier to read.

[aj]

Thanks Rolf. I much prefer method 1 myself.

AJ
Rolf Magnus wrote:

mieskola wrote:

Given the following struct definition:

struct Data
{
int i;
ComplexType c;
};
do either of the following copying methods have a programmatic
advantage? Style?

Data d;
Data e;

d.i = 4;
.
.
.
METHOD 1: e = d;
METHOD 2: memcpy(&e,&d, sizeof(d));

The second is only guaranteed to work if ComplexType is a POD. Method 1
works for any assignable type. It's also easier to read.