utility

group turbo_base

Functions

TURBO_FORCE_INLINE void assume (bool cond)

This function is used to make assumptions about the condition.

It uses different compiler intrinsics based on the compiler being used.

The assume_unreachable function is used to indicate to the compiler that a certain code path is unreachable. This function uses different compiler intrinsics based on the compiler being used. It is used when the condition is always false. This can be useful for optimization purposes, as it allows the compiler to make assumptions about the code that can potentially lead to more efficient code generation.

Parameters:

cond – The condition that is assumed to be true.

TURBO_FORCE_INLINE void assume_unreachable ()

This function is used to make assumptions about the condition.

It uses different compiler intrinsics based on the compiler being used.

See also

assume(bool cond), this function is used when the condition is always false.

TURBO_DLL int pid () noexcept

Get the current process id.

Returns:

The current process id

TURBO_DLL bool is_color_terminal () noexcept

Determine if the terminal supports colors Source: https://github.com/agauniyal/rang/.

Returns:

TURBO_DLL bool in_terminal (std::FILE *file) noexcept

Determine if the terminal attached Source: https://github.com/agauniyal/rang/.

See also

is_color_terminal()

Parameters:

file – The file to check

Returns:

True if the terminal is attached, false otherwise

TURBO_DLL size_t thread_id () noexcept

Get the current thread id, this is thread local, so it is unique per thread.

different from std::this_thread::get_id(). actually it is act as gettid() in linux.

Returns:

The current thread id

uint64_t thread_numeric_id()

Get the current thread id, on linux same as pthread_self().

inline double nominal_cpu_frequency()

Get the nominal cpu frequency of the current machine.

Nominal core processor cycles per second of each processor. This is not necessarily the frequency of the CycleClock counter Thread-safe.

Returns:

inline size_t cpu_num()

Get the number of logical processors (hyperthreads) in system.

Thread-safe.

Returns: