c - pycparser AST 节点指针/位置-6ren

c - pycparser AST 节点指针/位置

转载作者：太空宇宙更新时间：2023-11-04 04:13:24

我是解析方面的新手，我正在尝试使用 Pycparser 来解析我的 c 文件，我按照说明预处理文件 gcc -E 然后我使用示例文件夹中的 using_gcc_E_libc.py 并传递我的文件，我得到了一些输出，但不确定 AST 是否是这样的？如果那是正确的 AST，我如何找到每个节点及其依赖项以及该节点的指针(位置)？

FileAST: 


Typedef: size_t, [], ['typedef']
    TypeDecl: size_t, []
      IdentifierType: ['int']
  Typedef: __builtin_va_list, [], ['typedef']
    TypeDecl: __builtin_va_list, []
      IdentifierType: ['int']
  Typedef: __gnuc_va_list, [], ['typedef']
    TypeDecl: __gnuc_va_list, []
      IdentifierType: ['int']
  Typedef: va_list, [], ['typedef']
    TypeDecl: va_list, []
      IdentifierType: ['int']
  Typedef: __int8_t, [], ['typedef']
    TypeDecl: __int8_t, []
      IdentifierType: ['int']
  Typedef: __uint8_t, [], ['typedef']
    TypeDecl: __uint8_t, []
      IdentifierType: ['int']
  Typedef: __int16_t, [], ['typedef']
    TypeDecl: __int16_t, []
      IdentifierType: ['int']
  Typedef: __uint16_t, [], ['typedef']
    TypeDecl: __uint16_t, []
      IdentifierType: ['int']
  Typedef: __int_least16_t, [], ['typedef']
    TypeDecl: __int_least16_t, []
      IdentifierType: ['int']
  Typedef: __uint_least16_t, [], ['typedef']
    TypeDecl: __uint_least16_t, []
      IdentifierType: ['int']
  Typedef: __int32_t, [], ['typedef']
    TypeDecl: __int32_t, []
      IdentifierType: ['int']
  Typedef: __uint32_t, [], ['typedef']
    TypeDecl: __uint32_t, []
      IdentifierType: ['int']
  Typedef: __int64_t, [], ['typedef']
    TypeDecl: __int64_t, []
      IdentifierType: ['int']
  Typedef: __uint64_t, [], ['typedef']
    TypeDecl: __uint64_t, []
      IdentifierType: ['int']
  Typedef: __int_least32_t, [], ['typedef']
    TypeDecl: __int_least32_t, []
      IdentifierType: ['int']
  Typedef: __uint_least32_t, [], ['typedef']
    TypeDecl: __uint_least32_t, []
      IdentifierType: ['int']
  Typedef: __s8, [], ['typedef']
    TypeDecl: __s8, []
      IdentifierType: ['int']
  Typedef: __u8, [], ['typedef']
    TypeDecl: __u8, []
      IdentifierType: ['int']
  Typedef: __s16, [], ['typedef']
    TypeDecl: __s16, []
      IdentifierType: ['int']
  Typedef: __u16, [], ['typedef']
    TypeDecl: __u16, []
      IdentifierType: ['int']
  Typedef: __s32, [], ['typedef']
    TypeDecl: __s32, []
      IdentifierType: ['int']
  Typedef: __u32, [], ['typedef']
    TypeDecl: __u32, []
      IdentifierType: ['int']
  Typedef: __s64, [], ['typedef']
    TypeDecl: __s64, []
      IdentifierType: ['int']
  Typedef: __u64, [], ['typedef']
    TypeDecl: __u64, []
      IdentifierType: ['int']
  Typedef: _LOCK_T, [], ['typedef']
    TypeDecl: _LOCK_T, []
      IdentifierType: ['int']
  Typedef: _LOCK_RECURSIVE_T, [], ['typedef']
    TypeDecl: _LOCK_RECURSIVE_T, []
      IdentifierType: ['int']
  Typedef: _off_t, [], ['typedef']
    TypeDecl: _off_t, []
      IdentifierType: ['int']
  Typedef: __dev_t, [], ['typedef']
    TypeDecl: __dev_t, []
      IdentifierType: ['int']
  Typedef: __uid_t, [], ['typedef']
    TypeDecl: __uid_t, []
      IdentifierType: ['int']
  Typedef: __gid_t, [], ['typedef']
    TypeDecl: __gid_t, []
      IdentifierType: ['int']
  Typedef: _off64_t, [], ['typedef']
    TypeDecl: _off64_t, []
      IdentifierType: ['int']
  Typedef: _fpos_t, [], ['typedef']
    TypeDecl: _fpos_t, []
      IdentifierType: ['int']
  Typedef: _ssize_t, [], ['typedef']
    TypeDecl: _ssize_t, []
      IdentifierType: ['int']
  Typedef: wint_t, [], ['typedef']
    TypeDecl: wint_t, []
      IdentifierType: ['int']
  Typedef: _mbstate_t, [], ['typedef']
    TypeDecl: _mbstate_t, []
      IdentifierType: ['int']
  Typedef: _flock_t, [], ['typedef']
    TypeDecl: _flock_t, []
      IdentifierType: ['int']
  Typedef: _iconv_t, [], ['typedef']
    TypeDecl: _iconv_t, []
      IdentifierType: ['int']
  Typedef: __ULong, [], ['typedef']
    TypeDecl: __ULong, []
      IdentifierType: ['int']
  Typedef: __FILE, [], ['typedef']
    TypeDecl: __FILE, []
      IdentifierType: ['int']
  Typedef: ptrdiff_t, [], ['typedef']
    TypeDecl: ptrdiff_t, []
      IdentifierType: ['int']
  Typedef: wchar_t, [], ['typedef']
    TypeDecl: wchar_t, []
      IdentifierType: ['int']
  Typedef: __off_t, [], ['typedef']
    TypeDecl: __off_t, []
      IdentifierType: ['int']
  Typedef: __pid_t, [], ['typedef']
    TypeDecl: __pid_t, []
      IdentifierType: ['int']
  Typedef: __loff_t, [], ['typedef']
    TypeDecl: __loff_t, []
      IdentifierType: ['int']
  Typedef: u_char, [], ['typedef']
    TypeDecl: u_char, []
      IdentifierType: ['int']
  Typedef: u_short, [], ['typedef']
    TypeDecl: u_short, []
      IdentifierType: ['int']
  Typedef: u_int, [], ['typedef']
    TypeDecl: u_int, []
      IdentifierType: ['int']
  Typedef: u_long, [], ['typedef']
    TypeDecl: u_long, []
      IdentifierType: ['int']
  Typedef: ushort, [], ['typedef']
    TypeDecl: ushort, []
      IdentifierType: ['int']
  Typedef: uint, [], ['typedef']
    TypeDecl: uint, []
      IdentifierType: ['int']
  Typedef: clock_t, [], ['typedef']
    TypeDecl: clock_t, []
      IdentifierType: ['int']
  Typedef: time_t, [], ['typedef']
    TypeDecl: time_t, []
      IdentifierType: ['int']
  Typedef: daddr_t, [], ['typedef']
    TypeDecl: daddr_t, []
      IdentifierType: ['int']
  Typedef: caddr_t, [], ['typedef']
    TypeDecl: caddr_t, []
      IdentifierType: ['int']
  Typedef: ino_t, [], ['typedef']
    TypeDecl: ino_t, []
      IdentifierType: ['int']
  Typedef: off_t, [], ['typedef']
    TypeDecl: off_t, []
      IdentifierType: ['int']
  Typedef: dev_t, [], ['typedef']
    TypeDecl: dev_t, []
      IdentifierType: ['int']
  Typedef: uid_t, [], ['typedef']
    TypeDecl: uid_t, []
      IdentifierType: ['int']
  Typedef: gid_t, [], ['typedef']
    TypeDecl: gid_t, []
      IdentifierType: ['int']
  Typedef: pid_t, [], ['typedef']
    TypeDecl: pid_t, []
      IdentifierType: ['int']
  Typedef: key_t, [], ['typedef']
    TypeDecl: key_t, []
      IdentifierType: ['int']
  Typedef: ssize_t, [], ['typedef']
    TypeDecl: ssize_t, []
      IdentifierType: ['int']
  Typedef: mode_t, [], ['typedef']
    TypeDecl: mode_t, []
      IdentifierType: ['int']
  Typedef: nlink_t, [], ['typedef']
    TypeDecl: nlink_t, []
      IdentifierType: ['int']
  Typedef: fd_mask, [], ['typedef']
    TypeDecl: fd_mask, []
      IdentifierType: ['int']
  Typedef: _types_fd_set, [], ['typedef']
    TypeDecl: _types_fd_set, []
      IdentifierType: ['int']
  Typedef: clockid_t, [], ['typedef']
    TypeDecl: clockid_t, []
      IdentifierType: ['int']
  Typedef: timer_t, [], ['typedef']
    TypeDecl: timer_t, []
      IdentifierType: ['int']
  Typedef: useconds_t, [], ['typedef']
    TypeDecl: useconds_t, []
      IdentifierType: ['int']
  Typedef: suseconds_t, [], ['typedef']
    TypeDecl: suseconds_t, []
      IdentifierType: ['int']
  Typedef: FILE, [], ['typedef']
    TypeDecl: FILE, []
      IdentifierType: ['int']
  Typedef: fpos_t, [], ['typedef']
    TypeDecl: fpos_t, []
      IdentifierType: ['int']
  Typedef: cookie_read_function_t, [], ['typedef']
    TypeDecl: cookie_read_function_t, []
      IdentifierType: ['int']
  Typedef: cookie_write_function_t, [], ['typedef']
    TypeDecl: cookie_write_function_t, []
      IdentifierType: ['int']
  Typedef: cookie_seek_function_t, [], ['typedef']
    TypeDecl: cookie_seek_function_t, []
      IdentifierType: ['int']
  Typedef: cookie_close_function_t, [], ['typedef']
    TypeDecl: cookie_close_function_t, []
      IdentifierType: ['int']
  Typedef: cookie_io_functions_t, [], ['typedef']
    TypeDecl: cookie_io_functions_t, []
      IdentifierType: ['int']
  Typedef: div_t, [], ['typedef']
    TypeDecl: div_t, []
      IdentifierType: ['int']
  Typedef: ldiv_t, [], ['typedef']
    TypeDecl: ldiv_t, []
      IdentifierType: ['int']
  Typedef: lldiv_t, [], ['typedef']
    TypeDecl: lldiv_t, []
      IdentifierType: ['int']
  Typedef: sigset_t, [], ['typedef']
    TypeDecl: sigset_t, []
      IdentifierType: ['int']
  Typedef: __sigset_t, [], ['typedef']
    TypeDecl: __sigset_t, []
      IdentifierType: ['int']
  Typedef: _sig_func_ptr, [], ['typedef']
    TypeDecl: _sig_func_ptr, []
      IdentifierType: ['int']
  Typedef: sig_atomic_t, [], ['typedef']
    TypeDecl: sig_atomic_t, []
      IdentifierType: ['int']
  Typedef: __tzrule_type, [], ['typedef']
    TypeDecl: __tzrule_type, []
      IdentifierType: ['int']
  Typedef: __tzinfo_type, [], ['typedef']
    TypeDecl: __tzinfo_type, []
      IdentifierType: ['int']
  Typedef: mbstate_t, [], ['typedef']
    TypeDecl: mbstate_t, []
      IdentifierType: ['int']
  Typedef: sem_t, [], ['typedef']
    TypeDecl: sem_t, []
      IdentifierType: ['int']
  Typedef: pthread_t, [], ['typedef']
    TypeDecl: pthread_t, []
      IdentifierType: ['int']
  Typedef: pthread_attr_t, [], ['typedef']
    TypeDecl: pthread_attr_t, []
      IdentifierType: ['int']
  Typedef: pthread_mutex_t, [], ['typedef']
    TypeDecl: pthread_mutex_t, []
      IdentifierType: ['int']
  Typedef: pthread_mutexattr_t, [], ['typedef']
    TypeDecl: pthread_mutexattr_t, []
      IdentifierType: ['int']
  Typedef: pthread_cond_t, [], ['typedef']
    TypeDecl: pthread_cond_t, []
      IdentifierType: ['int']
  Typedef: pthread_condattr_t, [], ['typedef']
    TypeDecl: pthread_condattr_t, []
      IdentifierType: ['int']
  Typedef: pthread_key_t, [], ['typedef']
    TypeDecl: pthread_key_t, []
      IdentifierType: ['int']
  Typedef: pthread_once_t, [], ['typedef']
    TypeDecl: pthread_once_t, []
      IdentifierType: ['int']
  Typedef: pthread_rwlock_t, [], ['typedef']
    TypeDecl: pthread_rwlock_t, []
      IdentifierType: ['int']
  Typedef: pthread_rwlockattr_t, [], ['typedef']
    TypeDecl: pthread_rwlockattr_t, []
      IdentifierType: ['int']
  Typedef: pthread_spinlock_t, [], ['typedef']
    TypeDecl: pthread_spinlock_t, []
      IdentifierType: ['int']
  Typedef: pthread_barrier_t, [], ['typedef']
    TypeDecl: pthread_barrier_t, []
      IdentifierType: ['int']
  Typedef: pthread_barrierattr_t, [], ['typedef']
    TypeDecl: pthread_barrierattr_t, []
      IdentifierType: ['int']
  Typedef: jmp_buf, [], ['typedef']
    TypeDecl: jmp_buf, []
      IdentifierType: ['int']
  Typedef: rlim_t, [], ['typedef']
    TypeDecl: rlim_t, []
      IdentifierType: ['int']
  Typedef: sa_family_t, [], ['typedef']
    TypeDecl: sa_family_t, []
      IdentifierType: ['int']
  Typedef: sigjmp_buf, [], ['typedef']
    TypeDecl: sigjmp_buf, []
      IdentifierType: ['int']
  Typedef: stack_t, [], ['typedef']
    TypeDecl: stack_t, []
      IdentifierType: ['int']
  Typedef: siginfo_t, [], ['typedef']
    TypeDecl: siginfo_t, []
      IdentifierType: ['int']
  Typedef: z_stream, [], ['typedef']
    TypeDecl: z_stream, []
      IdentifierType: ['int']
  Typedef: int8_t, [], ['typedef']
    TypeDecl: int8_t, []
      IdentifierType: ['int']
  Typedef: uint8_t, [], ['typedef']
    TypeDecl: uint8_t, []
      IdentifierType: ['int']
  Typedef: int16_t, [], ['typedef']
    TypeDecl: int16_t, []
      IdentifierType: ['int']
  Typedef: uint16_t, [], ['typedef']
    TypeDecl: uint16_t, []
      IdentifierType: ['int']
  Typedef: int32_t, [], ['typedef']
    TypeDecl: int32_t, []
      IdentifierType: ['int']
  Typedef: uint32_t, [], ['typedef']
    TypeDecl: uint32_t, []
      IdentifierType: ['int']
  Typedef: int64_t, [], ['typedef']
    TypeDecl: int64_t, []
      IdentifierType: ['int']
  Typedef: uint64_t, [], ['typedef']
    TypeDecl: uint64_t, []
      IdentifierType: ['int']
  Typedef: int_least8_t, [], ['typedef']
    TypeDecl: int_least8_t, []
      IdentifierType: ['int']
  Typedef: uint_least8_t, [], ['typedef']
    TypeDecl: uint_least8_t, []
      IdentifierType: ['int']
  Typedef: int_least16_t, [], ['typedef']
    TypeDecl: int_least16_t, []
      IdentifierType: ['int']
  Typedef: uint_least16_t, [], ['typedef']
    TypeDecl: uint_least16_t, []
      IdentifierType: ['int']
  Typedef: int_least32_t, [], ['typedef']
    TypeDecl: int_least32_t, []
      IdentifierType: ['int']
  Typedef: uint_least32_t, [], ['typedef']
    TypeDecl: uint_least32_t, []
      IdentifierType: ['int']
  Typedef: int_least64_t, [], ['typedef']
    TypeDecl: int_least64_t, []
      IdentifierType: ['int']
  Typedef: uint_least64_t, [], ['typedef']
    TypeDecl: uint_least64_t, []
      IdentifierType: ['int']
  Typedef: int_fast8_t, [], ['typedef']
    TypeDecl: int_fast8_t, []
      IdentifierType: ['int']
  Typedef: uint_fast8_t, [], ['typedef']
    TypeDecl: uint_fast8_t, []
      IdentifierType: ['int']
  Typedef: int_fast16_t, [], ['typedef']
    TypeDecl: int_fast16_t, []
      IdentifierType: ['int']
  Typedef: uint_fast16_t, [], ['typedef']
    TypeDecl: uint_fast16_t, []
      IdentifierType: ['int']
  Typedef: int_fast32_t, [], ['typedef']
    TypeDecl: int_fast32_t, []
      IdentifierType: ['int']
  Typedef: uint_fast32_t, [], ['typedef']
    TypeDecl: uint_fast32_t, []
      IdentifierType: ['int']
  Typedef: int_fast64_t, [], ['typedef']
    TypeDecl: int_fast64_t, []
      IdentifierType: ['int']
  Typedef: uint_fast64_t, [], ['typedef']
    TypeDecl: uint_fast64_t, []
      IdentifierType: ['int']
  Typedef: intptr_t, [], ['typedef']
    TypeDecl: intptr_t, []
      IdentifierType: ['int']
  Typedef: uintptr_t, [], ['typedef']
    TypeDecl: uintptr_t, []
      IdentifierType: ['int']
  Typedef: intmax_t, [], ['typedef']
    TypeDecl: intmax_t, []
      IdentifierType: ['int']
  Typedef: uintmax_t, [], ['typedef']
    TypeDecl: uintmax_t, []
      IdentifierType: ['int']
  Typedef: bool, [], ['typedef']
    TypeDecl: bool, []
      IdentifierType: ['_Bool']
  Typedef: MirEGLNativeWindowType, [], ['typedef']
    PtrDecl: []
      TypeDecl: MirEGLNativeWindowType, []
        IdentifierType: ['void']
  Typedef: MirEGLNativeDisplayType, [], ['typedef']
    PtrDecl: []
      TypeDecl: MirEGLNativeDisplayType, []
        IdentifierType: ['void']
  Typedef: MirConnection, [], ['typedef']
    TypeDecl: MirConnection, []
      Struct: MirConnection
  Typedef: MirSurface, [], ['typedef']
    TypeDecl: MirSurface, []
      Struct: MirSurface
  Typedef: MirSurfaceSpec, [], ['typedef']
    TypeDecl: MirSurfaceSpec, []
      Struct: MirSurfaceSpec
  Typedef: MirScreencast, [], ['typedef']
    TypeDecl: MirScreencast, []
      Struct: MirScreencast
  Typedef: MirPromptSession, [], ['typedef']
    TypeDecl: MirPromptSession, []
      Struct: MirPromptSession
  Typedef: MirBufferStream, [], ['typedef']
    TypeDecl: MirBufferStream, []
      Struct: MirBufferStream
  Typedef: MirPersistentId, [], ['typedef']
    TypeDecl: MirPersistentId, []
      Struct: MirPersistentId
  Typedef: MirBlob, [], ['typedef']
    TypeDecl: MirBlob, []
      Struct: MirBlob
  Typedef: MirDisplayConfig, [], ['typedef']
    TypeDecl: MirDisplayConfig, []
      Struct: MirDisplayConfig
  Typedef: xcb_connection_t, [], ['typedef']
    TypeDecl: xcb_connection_t, []
      Struct: xcb_connection_t
  Typedef: xcb_window_t, [], ['typedef']
    TypeDecl: xcb_window_t, []
      IdentifierType: ['uint32_t']
  Typedef: xcb_visualid_t, [], ['typedef']
    TypeDecl: xcb_visualid_t, []
      IdentifierType: ['uint32_t']
  FuncDef: 
    Decl: main, [], [], []
      FuncDecl: 
        TypeDecl: main, []
          IdentifierType: ['int']
    Compound: 
      Decl: number1, [], [], []
        TypeDecl: number1, []
          IdentifierType: ['int']
      Decl: number2, [], [], []
        TypeDecl: number2, []
          IdentifierType: ['int']
      FuncCall: 
        ID: printf
        ExprList: 
          Constant: string, "Enter two integers: "
      FuncCall: 
        ID: scanf
        ExprList: 
          Constant: string, "%d %d"
          UnaryOp: &
            ID: number1
          UnaryOp: &
            ID: number2
      If: 
        BinaryOp: >=
          ID: number1
          ID: number2
        Compound: 
          If: 
            BinaryOp: ==
              ID: number1
              ID: number2
            Compound: 
              FuncCall: 
                ID: printf
                ExprList: 
                  Constant: string, "Result: %d = %d"
                  ID: number1
                  ID: number2
            Compound: 
              FuncCall: 
                ID: printf
                ExprList: 
                  Constant: string, "Result: %d > %d"
                  ID: number1
                  ID: number2
        Compound: 
          FuncCall: 
            ID: printf
            ExprList: 
              Constant: string, "Result: %d < %d"
              ID: number1
              ID: number2
      Return: 
        Constant: int, 0

最佳答案

这看起来像一个正确的 AST。顶部的所有 Typedef 节点都来自 pycparser 的“假” header ，以帮助它正确解析文件，您几乎可以忽略它们。

AST 只是一个递归的节点树；每个节点都是一个 Node目的。您可以迭代它的子节点(其他节点)，使用 .coord 属性查看其原始源位置，等等。有几个查看 AST 节点的示例，例如 explore_ast .

要查找特定节点，您可能需要编写访问者。有几个这样做的例子，比如 func_calls .

关于c - pycparser AST 节点指针/位置，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54717008/

文章推荐： jquery - 在 wordpress 移动设备上隐藏特定帖子

文章推荐： java - 在 headless (headless)环境中获取键盘事件

文章推荐： python - 如何将数组值导出到 CSV 中的不同行？

c - *指针 = - *指针？
我刚接触 C 语言几周，所以对它还很陌生。我见过这样的事情 * (variable-name) = -* (variable-name) 在讲义中，但它到底会做什么？它会否定所指向的值吗？最佳答案
c - void 指针 = int 指针 = float 指针
我有一个指向内存地址的void 指针。然后，我做 int 指针 = void 指针 float 指针 = void 指针然后，取消引用它们以获取值。 { int x = 25; vo
c++ - 需要将char*(指针)转换为wchar_t*(指针)
我正在与计算机控制的泵进行一些串行端口通信，我用来通信的 createfile 函数需要将 com 端口名称解析为 wchar_t 指针。我也在使用 QT 创建一个表单并获取 com 端口名称作为
C 指针。将大数赋值给 char * 指针
#include "stdio.h" #include "malloc.h" int main() { char*x=(char*)malloc(1024); *(x+2)=3; --
c - int 指针转换为 void 指针，然后转换为 double 指针
#include #include main() { int an_int; void *void_pointer = &an_int; double *double_ptr = void
从 C 中的 3D 指针/数组调用 2D 指针/数组
对于每个时间步长，我都有一个二维矩阵 a[ix][iz]，ix 从 0 到 nx-1 和 iz 从 0 到 nz-1。为了组装所有时间步长的矩阵，我定义了一个长度为 nx*nz*nt 的 3D 指针
c - 释放已分配给 char 指针(字符串)数组的内存。我必须释放每个字符串还是只释放 "main"指针？
我有一个函数，它接受一个指向 char ** 的指针并用字符串填充它(我猜是一个字符串数组)。 *list_of_strings* 在函数内部分配内存。 char * *list_of_strings
c - 使用 malloc 初始化 char 指针 VS 不使用 malloc 直接将字符串赋给 char 指针
我试图了解当涉及到字符和字符串时，内存分配是如何工作的。我知道声明的数组的名称就像指向数组第一个元素的指针，但该数组将驻留在内存的堆栈中。另一方面，当我们想要使用内存堆时，我们使用 malloc，
c# - 通过 P/Ivoke 在 C# 中传递 Struct 指针(主体中带有 char 指针)
我有一个 C 语言的 .DLL 文件。该 DLL 中所有函数所需的主要结构具有以下形式。 typedef struct { char *snsAccessID; char *
javascript使递归数组遍历并更新一些内部值(指针)
我得到了以下数组: let arr = [ { children: [ { children: [], current: tru
C程序输出困惑(指针)
#include int main(void) { int i; int *ptr = (int *) malloc(5 * sizeof(int)); for (i=0;
c程序，指针
我正在编写一个程序，它接受一个三位数整数并将其分成两个整数。 224 将变为 220 和 4。 114 将变为 110 和 4。基本上，您可以使用模数来完成。我写了我认为应该工作的东西，编译器一直说
循环中指向int的C++指针？
好吧，我对 C++ 很陌生，我确定这个问题已经在某个地方得到了回答，而且也很简单，但我似乎找不到答案.... 我有一个自定义数组类，我将其用作练习来尝试了解其工作原理，其定义如下: 标题: class
C++ `this` 指针
1) this 指针与其他指针有何不同？据我了解，指针指向堆中的内存。如果有指向它们的指针，这是否意味着对象总是在堆中构造？ 2)我们可以在 move 构造函数或 move 赋值中窃取this指针吗？
C结构，指针
这个问题在这里已经有了答案: 关闭 11 年前。 Possible Duplicate: C : pointer to struct in the struct definition 在我的初学者类
复制多维数组(指针)
我有两个指向指针的结构指针 typedef struct Square { ... ... }Square; Square **s1; //Representing 2D array of say,
c变量分配内存，指针
变量在内存中是如何定位的？我有这个代码 int w=1; int x=1; int y=1; int z=1; int main(int argc, char** argv) { printf
c编程语言，指针
#include #include main() { char *q[]={"black","white","red"}; printf("%s",*q+3); getch()
指向类成员的模板函数的C++指针
我在“C”类中有以下函数 class C { template void Func1(int x); template void Func2(int x); }; template void
64位机器上的c++指针
我在64位linux下使用c++，编译器(g++)也是64位的。当我打印某个变量的地址时，例如一个整数，它应该打印一个 64 位整数，但实际上它打印了一个 48 位整数。 int i; cout <<

太空宇宙

个人简介

我是一名优秀的程序员,十分优秀！

作者热门文章

滴滴打车优惠券免费领取

全站热门文章

首页

博学

6Ren·AI

商城

c - pycparser AST 节点指针/位置