copy structure to unsigned char

Hi,

I need to copy a nested structure (structures having multiple
structures) into a unsigned char
array. I cannot use memcpy as our micro doesnt support it.
I know the way to do is field by field copy of each structure members,
but then is there a
general algo / code which does this field by field copy ???? (Should
not have padding bytes)

My sample structure looks like this ->

struct temp {

struct t1;
struct t2;
struct t3;
...
...
char f[10];
};

I would be grateful if anybody shares me a generic code to do the
above,.

thanks
ravi

.

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