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C Language > Learn C Language > What are the __DATE__ and __TIME__ preprocessor command...
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What are the __DATE__ and __TIME__ preprocessor commands?

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Thank You for your Questions.... _DATE_ macro expands to a string constant that describes the date on which the pre-processor is being run whereas _TIME_ macro expands to a string constant that describes the time at which the pre-processor is being run. Thanks, Team DishaaPro
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Professional Tutor with 15 years of experience.

The standard predefined macros are specified by the relevant language standards, so they are available with all compilers that implement those standards. Older compilers may not provide all of them. Their names all start with double underscores. __DATE__ This macro expands to a string constant that...
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The standard predefined macros are specified by the relevant language standards, so they are available with all compilers that implement those standards. Older compilers may not provide all of them. Their names all start with double underscores. __DATE__ This macro expands to a string constant that describes the date on which the preprocessor is being run. The string constant contains eleven characters and looks like "Feb 12 1996". __TIME__ This macro expands to a string constant that describes the time at which the preprocessor is being run. The string constant contains eight characters and looks like "23:59:01". read less
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Learn by doing it. No theory Only Practical

Preprocessor is first statement that get executed. It tells compiler to pre-process before compilation. _DATE --> The current date as a character literal in "MMM DD YYYY" format. and The current time as a character literal in "HH:MM:SS" format. you can use them as below : void main() { printf("Date...
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Preprocessor is first statement that get executed. It tells compiler to pre-process before compilation. _DATE --> The current date as a character literal in "MMM DD YYYY" format. and The current time as a character literal in "HH:MM:SS" format. you can use them as below : void main() { printf("Date :%s\n", __DATE__ ); printf("Time :%s\n", __TIME__ ); } read less
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Having 17 years of teaching experience

_DATE_ & _TIME_ are macros designed and defined to display the date & time on which the preprocessor is being run. DATE will be in Month Date and Year ie Jan 20 2015 (11 characters) and TIME will be in Hours Minutes & seconds i.e. 18:40:10 (8 characters)
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Professional Trainer:: Hadoop Big Data, DevOps, Perl, Python

__DATE__ A character string literal containing the date when the source file was compiled. The date will be in the form: "Mmm dd yyyy" where: Mmm represents the month in an abbreviated form (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, or Dec). dd represents the day. If the day...
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__DATE__ A character string literal containing the date when the source file was compiled. The date will be in the form: "Mmm dd yyyy" where: Mmm represents the month in an abbreviated form (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, or Dec). dd represents the day. If the day is less than 10, the first d will be a blank character. yyyy represents the year. __TIME__ Defined as a character string literal containing the time when the source file was compiled. The time will be in the form: "hh:mm:ss" where: hh represents the hour. mm represents the minutes. ss represents the seconds. read less
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Software Professional Trainer with 26+ years of Experience in Software Design and Development

__DATE__ is a preprocessor macro that expands to current date at compile time in the form mmm dd yyyy (e.g. "Jul 18 2018"), as a string. void printCurrentDate () { cout << __DATE__ << endl; } __TIME__ is a preprocessor macro that expands to current time at compile time in the form hh mm...
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__DATE__ is a preprocessor macro that expands to current date at compile time in the form mmm dd yyyy (e.g. "Jul 18 2018"), as a string. void printCurrentDate () { cout << __DATE__ << endl; } __TIME__ is a preprocessor macro that expands to current time at compile time in the form hh mm ss , as a string. void printCurrentTime () { cout << __TIME__ << endl; } read less
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10 Yrs Exp ,C,C++ ,Python Programming & Computer Subjects(BCA,MCA & B.Tech)

__Date__ and __Time___ macro give date and time as as string when compilation happen ,basically used to capture creation date and time of a binary
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string containing current date fir both
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The __DATE__ macro is used to insert the current compilation date in the form "mm dd yyyy" into your program. The __TIME__ macro is used to insert the current compilation time in the form "hh:mm:ss" into your program.
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They will put in Current Date and Time (at the time of compiling (pre-processing to be precise)). Please remember that this date, time becomes hardcoded like a string literal. So it will only give you date and time of pre processing and not the date and time of execution. example: #include stdio.h...
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They will put in Current Date and Time (at the time of compiling (pre-processing to be precise)). Please remember that this date, time becomes hardcoded like a string literal. So it will only give you date and time of pre processing and not the date and time of execution. example: #include stdio.h // Urbanpro not allowing less than and greater than characters int main() { printf("%s:%s\n", __DATE__, __TIME__); return 0; } read less
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