There is a lot of rich history behind the business (or visiting) card. The credit card was just the business card juxtaposed to the size of the standard business card, for ease of use in the wallet.
Forbes: How Was The Standard Size Of A Credit Card Or A Business Card Established?
How Was The Standard Size Of A Credit Card Or A Business Card Established?
What is the difference between .size() and .length ? Is .size() only for arraylists and .length only for arrays?
The C++ standard does not specify the size of integral types in bytes, but it specifies a minimum width in bits (see [basic.types.fundamental] p1). You can infer minimum size in bytes from that and the value of the CHAR_BIT macro that defines the number of bits in a byte. In all but the most obscure platforms it's 8, and it can't be less than 8. One additional constraint for char is that its ...
What does the C++ standard say about the size of int, long?
I found two ways to determine how many elements are in a variable… I always get the same values for len () and size (). Is there a difference? Could size () have come with an imported library (like...
The C standard guarantees that SIZE_MAX will be at least 65535. size_t is the type returned by sizeof operator, and is used in the standard library (for example strlen returns size_t).
In several C++ examples I see a use of the type size_t where I would have used a simple int. What's the difference, and why size_t should be better?