Copying strings in C++

Here is a good example on why either you love C++ or hate it with such terse expression oriented code; I think its pretty cool.

If you want to copy one string to another, one option can be something like this.

void mycopy(char *p, char *q) {
	int len = strlen(q);

	for(int i=0; i<=len; i++)
		p[i] = q[i];

However this achieves the same thing as above and is more efficient:

void mycopy(char *p, char *q) {
	while(*p++ = *q++);

Of course why would you write your own version when you have standard string copy fundtion strcpy in <string.h>

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Amit Bahree

This blog is my personal blog and while it does reflect my experiences in my professional life, this is just my thoughts. Most of the entries are technical though sometimes they can vary from the wacky to even political – however that is quite rare. Quite often, I have been asked what’s up with the “gibberish” and the funny title of the blog? Some people even going the extra step to say that, this is a virus that infected their system (ahem) well. [:D] It actually is quite simple, and if you have still not figured out then check out this link – whats in a name?

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