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warning: implicit declaration of function
...er has not seen the declaration. */
return 0;
}
int fun(int x, char *p)
{
/* ... */
}
You need to declare your function before main, like this, either directly or in a header:
int fun(int x, char *p);
sha...
Get Substring - everything before certain char
I'm trying to figure out the best way to get everything before the - character in a string. Some example strings are below. The length of the string before - varies and can be any length
...
Concatenate two string literals
...tring literals using +, it is because a string literal is just an array of characters (a const char [N] where N is the length of the string plus one, for the null terminator). When you use an array in most contexts, it is converted into a pointer to its initial element.
So, when you try to do "H...
Where in memory are my variables stored in C?
...---> heap also stack (the teacher was trying to trick you)
pointers(ex: char *arr, int *arr) -------> heap data or stack, depending on the context. C lets you declare a global or a static pointer, in which case the pointer itself would end up in the data segment.
dynamically allocated space(us...
VC/Linux C++ 递归访问目录下所有文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
... C++ 递归访问目录下所有文件VC函数,部分代码如下:find(char * lpPath){ char szFind[MAX_PATH]; WIN32_FIND_DATA FindFileData; strcpy(sz...VC函数,部分代码如下:
find(char * lpPath)
{
char szFind[MAX_PATH];
WIN32_FIND_DATA FindFileData;
strcpy...
[源码实例] c/c++获取网卡mac地址 - C/C++ - 清泛网 - 专注C/C++及内核技术
...];
}ASTAT, * PASTAT;
ASTAT Adapter;
void getmac_one (int lana_num,char *pMicID)
{
NCB ncb;
UCHAR uRetCode;
memset( &ncb, 0, sizeof(ncb) );
ncb.ncb_command = NCBRESET;
ncb.ncb_lana_num = lana_num; // 指定网卡号
// 首先对选定的网卡发送一个NCBRESET命令...
rpcndr.h和wtypes.h冲突的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...x86) microsoft sdks windows v7.0a include rpcndr.h(162): error C2632: char后面的in...当编译出现如下错误时:
1>c:\program files (x86)\microsoft sdks\windows\v7.0a\include\rpcndr.h(162): error C2632: “char”后面的“int”非法
1>c:\program files (x86)\microsoft sdks\window...
C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
{
C041() : c_(0x01) {}
virtual void foo() { c_ = 0x02; }
char c_;
};
struct C100 : public virtual C041
{
C100() : c_(0x02) {}
char c_;
};
struct C101 : public virtual C041
{
C101() : c_(0x03) {}
char c_;
};
struct C110 : public C100, public C101 ...
What is the best way to find the users home directory in Java?
... = null;
int dwFlags = Shell32.SHGFP_TYPE_CURRENT;
char[] pszPath = new char[Shell32.MAX_PATH];
int hResult = Shell32.INSTANCE.SHGetFolderPath(hwndOwner, nFolder,
hToken, dwFlags, pszPath);
if (Shell32.S_OK == hResult) {
...