即惰性初始化（lazy initialization）。自 C++11 起，局部static变量的初始化是线程安全的，保证多个线程同时调用函数时，变量只会被初始化一次。2. 动态库中的static变量初始化 当你使用dlopen动态加载动态库时：全局static变量的初始化通常是在dlopen加载库时立刻完成，而不需要等待函数调用
静态变量需要在.cpp初始化,否则报错连接错误, 对于原始数据, int, double, … simple.h classSimple { public: Simple(void); ~Simple(void); staticintGetInt(void); private: staticint_i; }; simple.cpp intSimple::GetInt(void) { return_i; } 连接出错: error LNK2001: unresolved external symbol "...
它们是在函数第一次被调用时才会初始化，即惰性初始化（lazy initialization）。自 C++11 起，局部stati...
If the initial value of a static variable can’t be evaluated at compile time, the compiler will perform zero-initialization. Hence, during static initialization all static variables are either const-initialized or zero-initialized. After static initialization, dynamic initialization takes place. Dynamic...
```c // The IA64/generic ABI uses the first byte of the guard variable. // The ARM EABI uses the least significant bit. // Thread-safe static local initialization support. #ifdef __GTHREADS namespace { // static_mutex is a single mutex controlling all static initializations. // This...
return 1; // This thread should do the initialization. } if (expected == guard_bit) { // Already initialized. return 0; } if (expected == pending_bit) { // Use acquire here. int newv = expected | waiting_bit; // 0x10100 ...
(vlog-2244)Variable'cnt'is implicitlystatic.You must either explicitly declare itasstaticor automatic # or remove the initializationinthe declarationofvariable. 上述代码仿真结果为: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # @1def_cnt=1# @2def_cnt=2 ...
{ static constexpr int var() { return 1; } }; inline const int* func() { static const int t = { value<int>::var() }; return &t; } With VS 16.4.7 the static variable is placed in the BSS section and initialized on first use. With VS ...
I currently work at a project that uses a MC9S08SH16 micro and I have a question about variable initialization at start-up. I used the following code #define DEFINED_VAR void nameFunction1(void) { static unsigned char var1 = DEFINED_VAR; if(var1 != 0) { --var1;...
-u _c_int00 /* * symbolic aliases for static instance objects */ xdc_runtime_Startup__EXECFXN__C = 1; xdc_runtime_Startup__RESETFXN__C = 1; TSK_idle = ti_sysbios_knl_Task_Object__table__V + 228; SECTIONS { .text: load >> DDR ...