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如何判断GIF是否是动图 - C/C++ - 清泛网 - 专注C/C++及内核技术

...若是单图像会发现JFIF的标识,若为动图,则会出现GIF。charstrGIF[3];memcpy( strGIF, pbyImag...用记事本(或其他文本工具)打开图像文件,若是单图像会发现JFIF的标识,若为动图,则会出现GIF。 char strGIF[3]; memcpy( strGIF, pbyImageBuffe...
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boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术

...st::multi_index_container; using namespace boost::multi_index; typedef char IDType[81]; struct TParam { IDType ID; bool IsValid; }; typedef TParam* TParam_p; struct TParamIDIndex { }; struct TParamValidIndex { }; struct customize_compare { int operator()(const IDType l, cons...
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c++文件流基本用法(ifstream, ostream,fstream) - C/C++ - 清泛网 - 专注C/C++及内核技术

...二: 读文件 #include <fstream.h> void main { ifstream file; char output[100]; int x; file.open("file.txt"); file>>output; cout<<output; file>>x; cout<<x; file.close(); } 上面所讲的ofstream和ifstream只能进行读或是写,而fstream则同时...
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MiniDumpWriteDump 记录dmp文件的简单实例(附调试方法) - C/C++ - 清泛网...

...LONG WINAPI ExceptionHandler(LPEXCEPTION_POINTERS pExceptionPointers) { char szFile[MAX_PATH] = {0}; SYSTEMTIME st = {0}; GetLocalTime(&st); sprintf_s(szFile, "xxx_%d%02d%02d_%02d%02d%02d.dmp", st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); HANDLE hD...
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GetNextDlgTabItem用法详解,回车替代Tab键切换控件焦点 - C/C++ - 清泛网 ...

... == VK_RETURN) { CWnd *wnd = GetFocus(); if (wnd != NULL) { char str[256]; CString ClassName = _T("Button"); GetClassName (wnd->m_hWnd, str, 256); if (ClassName == str) { UINT i = wnd->GetDlgCtrlID(); SendMessage (WM_COMMAND, i, (LPARAM)wnd->m_hWnd); CWn...
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jsoncpp 不能处理__int64(long long)类型数据 - C/C++ - 清泛网 - 专注C/C++及内核技术

... include/json/value.h:188: note: Json::Value::Value(const char*) <near match> include/json/value.h:187: note: Json::Value::Value(double) include/json/value.h:186: note: Json::Value::Value(Json::UInt) include/json/value.h:185: note: ...
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ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术

... case EOF: return is; default: t += (char)c; } } } 例子: int main() { std::string path = "end_of_line_test.txt" std::ifstream ifs(path.c_str()); if(!ifs) { std::cout << "Failed to open the file." << std::endl; ...
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c++11右值引用、std::move移动语义、std::forward完美转发的一些总结 - C/C...

...还能拷贝构造,保障代码安全。对于一些基本类型如int和char[10]等,使用std::move()仍然会发生拷贝,因为没有对应的移动构造函数。 对于完美转发而言,右值引用并非“天生神力”,只是c++11新引入了右值,因此为其新定下了引...
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Java 调用外部进程 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... while (c >= 0) { builder.append((char) c); c = inputStream.read(); } } catch (IOException e) { } } }.start(); } } Java 外部进程
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Python truncate a long string

How does one truncate a string to 75 characters in Python? 17 Answers 17 ...