new/delete 与 malloc/free 比较 从C++ 角度上说,使用 new 分配堆空间可以调用类的构造函数,而 malloc() 函数仅仅是一个函数调用,它不会调用构造函数,它所接受的参数是一个 unsigned long 类型。同样, delete 在释放堆空间之前会调用析构函数,而 free 函数则不会。
static size_t loadUnsigned (LoadState *S, size_t limit) { size_t x = 0; int b; limit >>= 7; do { b = loadByte(S); if (x >= limit) error(S, "integer overflow"); x = (x << 7) | (b & 0x7f); } while ((b & 0x80) == 0); return x; } b & 0x80表示是否为...
int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud) { unsigned short oldnCcalls = L->nCcalls; struct lua_longjmp lj; lj.status = LUA_OK; lj.previous = L->errorJmp; /* chain new error handler */ L->errorJmp = &lj; LUAI_TRY(L, &lj, (*f)(L, ud); ); // 异...
typedef int (*lua_CFunction) (lua_State*L); lu_byte是个unsigned char类型,官方将其取名作lu_byte也许是表示lua unsigned byte的意思。 lua_CFunction表示Lua栈中能被调用的light c function的形式。 现在来看Lua的通用数据类型Value和TValue // lobject.h /* ** Tagged Values. This is the basic repr...
unsignedintsizearray;/* 数组的长度。size of 'array' array */ TValue *array;/* 数组部分. array part */ Node *node;// 指向哈希表的起始位置 Node *lastfree;/* 指向哈希表的最后一个空闲位置。 any free position is before this position */ ...
_BYTE*v3;//r0_BYTE *v4;//r5intv6;//r0intv7;//r2intv8;//r3boolv9;//ccunsignedintv10;//r1_BYTE *v11;//r12_BYTE *v12;//r0charv13;//t1_BYTE *v14;//r0charv15[4];//[sp+0h] [bp-18h]v3= (_BYTE *)cocos2d::Data::getBytes(a1); ...
unsigned short old_nny = L->nny; ptrdiff_t old_errfunc = L->errfunc; L->errfunc = ef; // 记录异常处理函数 status = luaD_rawrunprotected(L, func, u); // 以保护模式运行 if (status != LUA_OK) { // 当异常发生时 StkId oldtop = restorestack(L, old_top); // ‘释放’调用...
(C calling Lua) */ lua_Hook hook; ptrdiff_t errfunc; /* current error handling function (stack index) */ int stacksize; int basehookcount; int hookcount; unsigned short nny; /* number of non-yieldable calls in stack */ unsigned short nCcalls; /* number of nested C calls */ lu...
问混合C语言的C++嵌入LuaEN我正在致力于将Lua嵌入到一个C++项目中，该项目严重依赖于一些遗留的C代码。
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