Re: Realizing memdup() compactly in C++
On May 14, 5:21 pm, Victor Bazarov <v.Abaza...@comAcast.net> wrote:
Nordl=F6w wrote:
On 14 Maj, 15:32, Victor Bazarov <v.Abaza...@comAcast.net> wrote:
Nordl=F6w wrote:
Han anybody written any snippet (template i guess) that
realizes memdup () using the operator new. Suggested name:
new_duplicate.
What is it you're trying to accomplish with it? Are you
trying to get 'memdup' to use the same *allocation
function* as 'new'? Also, see FAQ 5.2, perhaps it's
relevant.
Ooops, memdup() was defined by me... Here's the definition:
static inline char *
memdup(const char *s, size_t n)
{
char * t = (char*)malloc(n);
memcpy(t, s, n);
return t;
}
Uh... So, what's stopping you from replacing a call to malloc
with a 'new[]' expression? Or do you want it to work with any
type?
Isn't what he's really looking for something more along the
lines of:
template< typename T >
T*
new_duplicate( T const& original )
{
return new T( original ) ;
}
Although I really don't see the need for a special function to
do this (except maybe obfuscation).
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