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iOS app error - Can't add self as subview

...ns a list of note objects. The note object has a content property in html. Select a note will go to the detail controller. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { //get note object DetailViewController *controller = [[DetailViewControlle...
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printf with std::string?

...style string, you can use the c_str() method of std::string to get a const char * that is null-terminated. Using your example: #include <iostream> #include <string> #include <stdio.h> int main() { using namespace std; string myString = "Press ENTER to quit program!"; ...
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How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?

...ER(x,y) #define NAME(fun) EVALUATOR(fun, VARIABLE) extern void NAME(mine)(char *x); $ gcc -E xx.c # 1 "xx.c" # 1 "<built-in>" # 1 "<command-line>" # 1 "xx.c" extern void mine_3(char *x); $ Two levels of indirection In a comment to another answer, Cade Roux asked why this needs t...
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C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术

... {  C041() : c_(0x01) {}  virtual void foo() { c_ = 0x02; }  char c_; }; struct C100 : public virtual C041 {  C100() : c_(0x02) {}  char c_; }; struct C101 : public virtual C041 {  C101() : c_(0x03) {}  char c_; }; struct C110 : public C100, public C101 ...
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AfxIsValidAddress 测试内存地址 - C/C++ - 清泛网 - 专注C/C++及内核技术

...不仅限于模块分配新的地址。 Example // Allocate a 5 character array, which should have a valid memory address. char* arr = new char[5]; // Create a null pointer, which should be an invalid memory address. char* null = (char*)0x0; ASSERT(AfxIsValidAddress(arr, 5)); ASSER...
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How to check if a String contains another String in a case insensitive manner in Java?

..._INSENSITIVE).matcher(source).find(); EDIT: If s2 contains regex special characters (of which there are many) it's important to quote it first. I've corrected my answer since it is the first one people will see, but vote up Matt Quail's since he pointed this out. ...
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How can I get a java.io.InputStream from a java.lang.String?

...but that has been @Deprecrated (with good reason--you cannot specify the character set encoding): 8 Answers ...
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Why 0 is true but false is 1 in the shell?

...the same. Also it needs to be expected that some people cast errno to char or short at some point, or even to float. (int)((char)ENOLCK) is not ENOLCK when char is not at least 8-bit long (7-bit ASCII char machines are supported by UNIX), while (int)((char)0) is 0 independent of the architectur...
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What column type/length should I use for storing a Bcrypt hashed password in a Database?

...d format a two digit value denoting the cost parameter, followed by $ a 53 characters long base-64-encoded value (they use the alphabet ., /, 0–9, A–Z, a–z that is different to the standard Base 64 Encoding alphabet) consisting of: 22 characters of salt (effectively only 128 bits of the 132 d...
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获取文件系统映像及恢复删除的数据(FAT文件系统格式描述) - C/C++ - 清泛...

...str()<< L"/n"; } int driveIndex; std::cin >> driveIndex;//selecting a disk std::vector<unsigned char> buffer; //creating a path std::wstring dumpPath(L"////.//PhysicalDrive"); wchar_t index[MAX_PATH]; _itow(devices.at(driveIndex).vHarddiskIndexes[0], index , MAX_P...