Two things: Specify the keyboard type to only show the numeric keypad. So, set the keyboardType to .numberPad. This, however is not enough to stop the user from entering invalid characters in the text field. For example, the user is still able to paste text or switch keyboards when using an iPad. Specify the text … Read more
They are being divided in integer arithmetics. So dividing integer a by integer b you get how many times b fits into a. Also a % b will give you a remainder of a division. So (a / b ) * b + a % b = a
That’s because integers don’t have values for +/-Inf, NaN, and don’t allow division by 0, while floats do have those special values.
There are two problems: Int is a 64-bit integer on 64-bit platforms, your input data has only 32-bit. Int uses a little-endian representation on all current Swift platforms, your input is big-endian. That being said the following would work: let array : [UInt8] = [0, 0, 0, 0x0E] var value : UInt32 = 0 let … Read more
Do you want to convert ints to chars?: int yourInt = 33; char ch = (char) yourInt; System.out.println(yourInt); System.out.println(ch); // Output: // 33 // ! Or do you want to convert ints to Strings? int yourInt = 33; String str = String.valueOf(yourInt); Or what is it that you mean?
The expression: ($min <= $value) && ($value <= $max) will be true if $value is between $min and $max, inclusively See the PHP docs for more on comparison operators
In fact, you can do so using a compound literal, a feature added to the language by the 1999 ISO C standard. A string literal is of type char[N], where N is the length of the string plus 1. Like any array expression, it’s implicitly converted, in most but not all contexts, to a pointer … Read more
The documentation seems pretty clear about this: Numeric Type Attributes MySQL supports an extension for optionally specifying the display width of integer data types in parentheses following the base keyword for the type. For example, INT(4) specifies an INT with a display width of four digits. This optional display width may be used by applications … Read more
Reversing the bits in a word is annoying and it’s easier just to output them in reverse order. E.g., void write_u32(uint32_t x) { int i; for (i = 0; i < 32; ++i) putchar((x & ((uint32_t) 1 << (31 – i)) ? ‘1’ : ‘0’); } Here’s the typical solution to reversing the bit order: … Read more
Integer division truncates, so (50/100) results in 0. You can cast to float (better double) or multiply with 100.0 (for double precision, 100.0f for float precision) first, double percentage; // … percentage = 100.0*number/total; // percentage = (double)number/total * 100; or float percentage; // … percentage = (float)number/total * 100; // percentage = 100.0f*number/total; Since … Read more