C Standard Library ctime Function - Learn about the ctime function in the C Standard Library, its usage, parameters, and return values for date and time formatting.
The C library function char *ctime(const time_t *timer) returns a string representing the localtime based on the argument timer. The returned string has the following format − Www Mmm dd hh:mm:ss yyyy, where Www is the weekday, Mmm the month in letters, dd the day of the month,...
CRT library features Universal C runtime routines by category Global variables and standard types Global constants Generic-text mappings Locale names, languages, and country-region strings Function family overviews Obsolete functions CRT alphabetical function reference CRT alphabetical function...
When you create aCTimeobject, set thenDSTparameter to 0 to indicate that standard time is in effect, or to a value larger than 0 to indicate that daylight saving time is in effect, or to a value less than zero to have the C run-time library code compute whether standard time or dayli...
Including this header ensures that the names declared using external linkage in the Standard C library header are declared in thestdnamespace. Constants C++ #defineNULL#defineCLOCKS_PER_SEC#defineTIME_UTCnamespacestd{usingsize_t= see below;usingclock_t= see below ;usingtime_t= see below ; }...
When you create a CTime object, set the nDST parameter to 0 to indicate that standard time is in effect, or to a value larger than 0 to indicate that daylight saving time is in effect, or to a value less than zero to have the C run-time library code compute whether standard time or...
When creating a CTime, set the nDST parameter to 0 to indicate that standard time is in effect, or to a value greater than 0 to indicate that daylight savings time is in effect, or to a value less than zero to have the C run-time library code compute whether standard time or ...
When you create a CTime object, set the nDST parameter to 0 to indicate that standard time is in effect, or to a value larger than 0 to indicate that daylight saving time is in effect, or to a value less than zero to have the C run-time library code compute whether standard time or...
C++ in Visual Studio overview Language reference Libraries C++ build process Windows programming with C++ Version Visual Studio 2022 Search C runtime library (CRT) reference CRT library features Universal C runtime routines by category Global variables and standard ...
上面这段话的意思好像是跟夏令时有关的，与time函数好像没有太大的关系的，nDst是CTime里面的一个参数。nDst有一个默认值-1,表示由系统来决定是否采用夏令时，0表示不用夏令时，大于0的数值表示使用夏令时。对应国内的同学来说，没有什么用，因为我们都没有采用夏令时 time...