Tips and Tricks in C

[DarTH_sof]

I opened this topic to share tips and tricks about c so we can use it more efficient
if there are any optimizations, efficient coded data types please send

for example:
insted of

node *sth;
sth=(node *)malloc(sizeof(node));
...

everytime

node *newNode()
{
    node *temp=(node *)malloc(sizeof(node));
    ...
    return temp;
}
node *sth;
sth=newNode();

is better

[uau]

[quote="DarTH"]

node *newNode()
{
    node *temp=(node *)malloc(sizeof(node));
    ...
    return temp;
}
node *sth;
sth=newNode();

[/quote]How does this make anything more efficient? If the "..." part is long and appears identically in many places then maybe, but not otherwise.
Unless there's lots of standard initialization code for a node I'd write that simply

node *sth = malloc(sizeof(node));

Also your function could be improved. The parameter list should be (void), not () which makes it an old-style declaration. The (node *) cast for malloc is redundant and IMO bad style in C (if you're writing C++ then it's necessary boilerplate).