To help keep harsh lamplight out of your eyes, covering the bulb with a shade is necessary. But if your lamp is on the small side, you need to consider the size of the lampshade carefully so that it ...
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?
So, the size of size_t is not specified, only that it has to be an unsigned integer type. However, an interesting specification can be found in chapter 7.18.3 of the standard: Which basically means that, irrespective of the size of size_t, the allowed value range is from 0-65535, the rest is implementation dependent.