你好,我在复现你的好几个包时,都出现了一些引用的结构体成员,在结构体变量中却没有声明。比如: /robobutler/controllers/control_task2/src/butler.cpp:192:13: error: ‘struct robotTypeDef’ has no member named ‘arm_epos_h_grasp_gpd_off’; did you mean ‘arm_epos_h_grasp_off’? 我转到结构体...
6.test.c:17:37: error:'struct test_struct'has no member named'id' 修改上例,使其符合C99标准,如test01.c: [cpp]view plaincopy 1.#include <stdio.h> 2. 3.uniontest_union { 4.chargender; 5.intid; 6.}; 7. 8.structtest_struct { 9.char*name; 10.uniontest_union test_union; 11....
如果漏掉圆括号,则这段代码的含义就完全不同了: // run the same_isbn member of sp then dereference the result! *sp.same_isbn(item2); // error: sp has no member named same_isbn 1. 2. 这个表达式企图获得sp对象的same_isbn成员。等价于: *(sp.same_isbn(item2)); // equivalent to *sp....
static client_t *clients[MAXCLIENTS];code.c:186:19: error: ‘client_t’ has nomember named ‘sd’ code.c:187:19: error: ‘client_t’ has no me 浏览1提问于2013-05-30得票数 3 回答已采纳 2回答 如何在C中访问指向列表的指针结构数组? 、、、 struct B *next; d_root=Table->b[5]; ...
//[Error] 'class std::basic_string<char>' has no member named 'string' //! pstr->~string(); //crash -- 其語法語意都是正確的, crash 只因為上一行被 remark 起來嘛. cout<<"str= "<<*pstr<<endl; 1. 2. 3. 4. 5. 6.
napi_module结构体字段描述解析 更新时间: 2024-12-31 09:18 关于napi_module_register(napi_module* mod)方法的入参napi_module字段的详细描述如下: staticnapi_module demoModule = { .nm_version =1,// nm版本号,默认值为1 .nm_flags =0,// nm标识符 ...
for streams where no more data has been received yet. */ void *opaque; /**< A private pointer, passed to the read/write/seek/... functions. */ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size); int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);...
(or ->) operator has a left operand that is (a pointer to) a structure with a flexible array member and the right operand names that member, it behaves as if that member were replaced with the longest array (with the same element type) that would not make the structure larger than ...
能想到的也就这种malloc的情况,不过这个也不准确. 替换数组的偏移是 sizeof(struct A)=8, offsetof(...
变长结构体是由gcc扩展的一种技术,它是指其最后一个成员的长度不固定(flexible array member,也叫柔性数组),先来看一个简单的例子: #include <stdlib.h>#include<stdio.h>#pragmapack(1)typedefstruct{inta;charb[10];char*vector;} cq;#pragmapack()intmain() ...