编译的时候加上-fsanitize=undefined选项，就可以找出一些代码中存在的ub的地方，例如整数溢出、空指针解...
Compiler warning (level 1) C4776 '%character' is not allowed in the format string of function 'function' Compiler warning (level 4, off) C4777 'function' : format string 'string' requires an argument of type 'type1', but variadic argument number has type 'type2' Compiler warning (level...
The pointer(s) passed to these routines must be nonzero and each pointer must point to the initial character in a null-terminated array. Some of these functions write to a string they are passed. These functions assume that the array to which they write is large enough to hold whatever ch...
错误1使用不以'\0'结尾的字符串调用strlen是未定义行为(The behavior is undefined ifstris not a pointer to a null-terminated byte string.https://en.cppreference.com/w/c/string/byte/strlen)),将__end设置为满足迭代器要求的指针位置(字符串末尾'\0'的位置)。
Fixing “direct comparisonofastringliteral has undefined behavior” 原因在于 ==:比较的是指针指向的地址,OC中的对象都是用指针表示的,但在这里并不能保证activityType与0相等 那么很自然可以想到使用用isEqual或isEqualToString方法,这两者也是有区别的: ...
(rs.FlushResultSet()) { // must call MoveNext because cursor is invalid rs.MoveNext(); while (!rs.IsEOF()) { CString strFieldValue; for (short nIndex = 0; nIndex < rs.GetODBCFieldCount(); nIndex++) { rs.GetFieldValue(nIndex, strFieldValue); // TO DO: Use field value string...
cJSON_String(用cJSON_IsString检查):表示一个字符串值。它以零终止字符串的形式存储在valuestring中。 cJSON_Array(使用cJSON_IsArray检查):表示一个数组值。这是通过将child指向一个表示数组中值的cJSON项的链表来实现的。这些元素使用next和prev链接在一起,其中第一个元素有prev。next == NULL,最后一个元...
Better String - An alternative to the string library for C which is more functional and does not have buffer overflow overrun problems. Also includes a C++ wrapper. [BSD, GPL2] Boost.Signals2 - An implementation of a managed signals and slots system. [Boost] website casacore - A set of...
an empty string versus undefined is indistinguishable. Erasing the default compiler path results in the default compiler path to be set to an empty string in the usersettings.jsonfile rather than undefined. I think this could cause unanticipated problems for users using the UI rather than thesetti...
checkConnect(String, int) - 类 java.lang.SecurityManager 中的方法 如果不允许调用线程打开到指定主机和端口号的套接字连接,则抛出 SecurityException。 checkConnect(String, int, Object) - 类 java.lang.SecurityManager 中的方法 如果不允许指定的安全上下文打开与指定主机和端口号的套接字连接,则抛出 Secur...