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  2. C date and time functions - Wikipedia

    en.wikipedia.org/wiki/C_date_and_time_functions

    The C date and time functions are a group of functions in the standard library of the C programming language implementing date and time manipulation operations. [1] They provide support for time acquisition, conversion between date formats, and formatted output to strings.

  3. C standard library - Wikipedia

    en.wikipedia.org/wiki/C_standard_library

    Some compilers (for example, GCC [8]) provide built-in versions of many of the functions in the C standard library; that is, the implementations of the functions are written into the compiled object file, and the program calls the built-in versions instead of the functions in the C library shared object file.

  4. Compile-time function execution - Wikipedia

    en.wikipedia.org/wiki/Compile-time_function...

    This example specifies a valid D function called "factorial" which would typically be evaluated at run time. The use of enum tells the compiler that the initializer for the variables must be computed at compile time. Note that the arguments to the function must be able to be resolved at compile time as well. [4]

  5. CPU time - Wikipedia

    en.wikipedia.org/wiki/CPU_time

    When a program wants to time its own operation, it can use a function like the POSIX clock() function, which returns the CPU time used by the program. POSIX allows this clock to start at an arbitrary value, so to measure elapsed time, a program calls clock() , does some work, then calls clock() again. [ 1 ]

  6. C (programming language) - Wikipedia

    en.wikipedia.org/wiki/C_(programming_language)

    This is an accepted version of this page This is the latest accepted revision, reviewed on 29 December 2024. General-purpose programming language "C programming language" redirects here. For the book, see The C Programming Language. Not to be confused with C++ or C#. C Logotype used on the cover of the first edition of The C Programming Language Paradigm Multi-paradigm: imperative (procedural ...

  7. Time-utility function - Wikipedia

    en.wikipedia.org/wiki/Time-utility_function

    More generally, a TUF allows downward (and upward) step functions to have any pre- and post-critical time utilities. Tardiness [32] represented as a TUF is a special case whose non-zero utility is the linear function C - d, where C is the action's completion time—either current, expected, or believed.

  8. C syntax - Wikipedia

    en.wikipedia.org/wiki/C_syntax

    A snippet of C code which prints "Hello, World!". The syntax of the C programming language is the set of rules governing writing of software in C. It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.

  9. Ctime - Wikipedia

    en.wikipedia.org/wiki/Ctime

    ctime(), a function in the ISO C standard library defined in the time.h standard header <ctime> is a standard header file for C++, equivalent to the C standard library header, < time.h > st_ctime , a member of the stat structure specifying the last inode change time of a file in a Unix-like filesystem