size

What is the size of this struct? (32 bit system calculation. Not 64 bit.) struct list_element { short data; struct list_element* next; struct list_element* prev; }; I have tried calculating the size with these formulas: (sizeof(list_element*) + sizeof(short)) + ((sizeof(list_element*) * 2) (4 + 2) + (4 * 2) = 6 + 8 = 14 (sizeof(short)) + (sizeof(list_element*) * 2) 2 + (4 * 2) = 2 + 8 = 10 (sizeof(list_element*) + sizeof(list_element*) + sizeof(short)) + (sizeof(list_element*) * 2) (4 + 4 + 2) + (4 * 2) = 10 + 8 = 18 (sizeof(list_element*) + sizeof(list_element*) + sizeof(short)) (4 + 4 + 2) =

It seems safe to cast the result of my vector's size() function to an unsigned int . How can I tell for sure, though? My documentation isn't clear about how size_type is defined. paercebal Do not assume the type of the container size (or anything else typed inside). Today? The best solution for now is to use: std::vector<T>::size_type Where T is your type. For example: std::vector<std::string>::size_type i ; std::vector<int>::size_type j ; std::vector<std::vector<double> >::size_type k ; (Using a typedef could help make this better to read) The same goes for iterators, and all other types

CoreData provides Integer 16, Integer 32 and Integer 64 storage, but doesn't support any sign qualifiers. You can store an unsigned int (32 bit) as a signed long (64 bit) and make sure the value is preserved for the full range, but an unsigned long seems to require a 128 bit signed integer to store, which of course isn't supported by CoreData. Is there any way then to store unsigned long in coreData? [Previous comment promoted to answer] Sounds like it is the bit pattern which is important to you and not the integer value per se. You can store it as a signed - just cast it as C signed<-

I'm working on an engineering application, and the interface is written in TCL TK. Everything went fine until I need to use a (extremely) large array. 370.000.000 of elements, each element from 2 to 10 characters length (linear grown). My question is, ¿where is the size limit for TCL arrays? I've been reading and investigating and the only I've found is "2GB" of string data, but I dont know if it's reliable because it doesn't explain the reason. I did an experiment: set lista [list ] catch { for {set i 0} {$i < 370000000} {incr i} { lappend lista $i } } puts $i returns $i = 50.000.000 more or

According to numerous answers here, long and int are both 32 bits in size on common platforms in C and C++ (Windows & Linux, 32 & 64 bit.) (I'm aware that there is no standard, but in practice, these are the observed sizes.) So my question is, how did this come about? Why do we have two types that are the same size? I previously always assumed long would be 64 bits most of the time, and int 32. I'm not saying it "should" be one way or the other, I'm just curious as to how we got here. From the C99 rationale (PDF) on section 6.2.5: [...] In the 1970s, 16-bit C (for the PDP-11) first represented

对于触碰左侧、右侧的事件，主要通过x的取值来进行判断。对于持续按下“Down”键，通过Thread的sleep()参数来控制。 TetrisClient类： ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 import java.awt.*; import java.awt.event.*; public class TetrisClient extends Frame{ //声明变量，窗口出现的位置 int x = 300 ; int y = 100 ; //游戏窗体宽高 public static final int WIDTH = 400 ; public static final int HEIGHT = 480 ; /

I wrote the simple C program (test.c) below:- #include<stdio.h> int main() { return 0; } and executed the follwing to understand size changes in .bss segment. gcc test.c -o test size test The output came out as:- text data bss dec hex filename 1115 552 8 1675 68b test I didn't declare anything globally or of static scope. So please explain why the bss segment size is of 8 bytes. I made the following change:- #include<stdio.h> int x; //declared global variable int main() { return 0; } But to my surprise, the output was same as previous:- text data bss dec hex filename 1115 552 8 1675 68b test