Questions from a "dummy" - page 171

[Mykola Demko]

fyords:

When count is divisible by a hundred (100,200,300...) the condition will be triggered, i.e. the remainder will be zero.

I.e. multiplicity 100, in all other cases it will be like 2.5, 4.6, etc. - the remainder will be 0.5 and 0.6 respectively.

The remainder of division only works for integers, so 0.5 and 0.6 cannot be, but otherwise it is correct.

[Dmitriy Parfenovich]

Urain:
The remainder of division only works for integers, so 0.5 and 0.6 can't be, but otherwise it's correct.

Yes, indeed, and it seemed to work that way in C++. And yes, the example is not very good, but it is clear and understandable.

[[Deleted]]

Please help in C++: is it possible to specify an enum type? For example, I don't want 4 bytes, but one or eight.

[TheXpert]

Clearly not -- the type is generated based on the values. There may be a minimum size (4 bytes)

But by setting specific values, the type can be controlled.

Better double-check, may have forgotten. There seems to be some tricky stuff with signed unsigned.

[[Deleted]]

TheXpert:

Clearly not -- the type is generated based on the values. There may be a minimum size (4 bytes)

But by setting specific values, the type can be controlled.

Better double-check, may have forgotten. There seems to be some tricky stuff with signed unsigned.

Thanks, it's always 4, at least for me :)

[TheXpert]

220Volt:

Here's what I found:

Currently C++ doesn't support this. C++0X will support this, using this syntax: enum class Enum2 : __int64 {Val1, Val2, val3};

[Dmitriy Parfenovich]

220Volt:

Please help in C++: is it possible to specify an enum type? For example, I don't want 4 bytes, but one or eight.

Basic C++ types

Data type	Bytes	Bits	Min	Max
signed char	1	8	- 128	127
unsigned char	1	8	0	255
signed short	2	16	-32768	32767
enum	2	16	-32768	32767
unsigned short	2	16	0	65535
signed int	2	16	-32768	32767
unsigned int	2	16	0	65535
signed long	4	32	-2147483648	2147483647
unsigned long	4	32	0	4294967295

[Veniamin Skrepkov]

Hello.

I threw new indices in the folder C:{Program Files\InstaTrader 5\MQL5\Indicators\Examples, but they are not visible in the terminal?

What's the problem?

[Olegs Kucerenko]

Vin22:

Hello.

I threw new indices in the folder C:{Program Files\InstaTrader 5\MQL5\Indicators\Examples, but they are not visible in the terminal?

Please tell me what's wrong.

The terminal uses a different folder.

If you run it with the /portable switch, it will use its own folder.

D:\.....\terminal.exe /portable

[TheXpert]

220Volt:

Thanks, always 4, at least for me :)

Just checked in VS2010 :) it works.

enum Enum2 : char {Val1, Val2, Val3};

It gives out sizeof == 1.