最近群友对int128这个东西讨论的热火朝天的。讲道理的话,编译器的gcc是不支持__int128这种数据类型的,比如在codeblocks 16.01/Dev C++是无法编译的,但是提交到大部分OJ上是可以编译且能用的。C/C++标准。IO是不认识__int128这种数据类型的,因此要自己实现IO,其他的运算,与int没有什么不同。 但是官方上写了GCC...
函数功能remove删除文件rename重命名文件tmpfile打开一个临时文件tmpnam生成一个临时文件fclose关闭文件fflushFlush流fopen打开文件freopen把一个新的文件名与给定的打开流相关联,同时关闭流中的旧文件setbuf设置流的缓冲区setvbuf定义流缓冲的函数fprintf格式化写入流fscanf从流读取格式化输入printf格式化打印到stdoutscanf从标准输...
<< std::endl; timespec ts; clock_gettime(CLOCK_MONOTONIC, &ts); printf("current time: %ld.%.9lds.\n", ts.tv_sec, ts.tv_nsec); timeval tv; TIMESPEC_TO_TIMEVAL(&tv, &ts); timeval gap = {1,0}; timeval outcome = {0, 0}; timeradd(&tv, &gap, &outcome); printf("+1s: ...
(url.to_string(),L"PUT",NULL, consumerKey, consumerSecret, creds->Token(), creds->TokenSecret() );std::wstring sb = oAuthObj->OAuthBuildSignedHeaders(url);returnfile_stream<unsignedchar>::open_istream(LocalFiletoUpload) .then([sb, url](pplx::task<basic_istream<unsignedchar>> previous...
time(&t);//time函数返回表示当前时间的time_t p=localtime(&t);//localtime函数将time_t类型的值转化为具体的本地时间和日期 today = (enum Week)p->tm_wday; switch(today){ case mon: case tue: case wed: case thu: case fri: printf("工作日\n");break; ...
ctime(), ctime64() — Convert time to character string ctime_r(), ctime64_r() — Convert time value to date and time character string ctrace() — Request a traceback cuserid() — Return character login of the user dbm_clearerr() — Clear database error indicator dbm_close...
/* Conver to l/c */printf("Lower: ");a=alphabet;while(*a){putchar(*a|0x20);a++;}put...
These operator functions are now always statically linked into your binaries, even when using the runtime library DLLs. This isn't a breaking change for native or mixed code (/clr), however for code compiled as /clr:pure, this change might cause your code to fail to compile. If you ...
std::auto_ptr<std::string> ps (new std::string(str));C++ 11shared_ptr unique_ptr weak_ptr auto_ptr(被 C++11 弃用)Class shared_ptr 实现共享式拥有(shared ownership)概念。多个智能指针指向相同对象,该对象和其相关资源会在 “最后一个 reference 被销毁” 时被释放。为了在结构较复杂的情景中执行...
These operator functions are now always statically linked into your binaries, even when using the runtime library DLLs. This isn't a breaking change for native or mixed code (/clr), however for code compiled as /clr:pure, this change might cause your code to fail to compile. If you ...