kimwalisch

///
/// @file   l1d_cache_size.cpp
/// @brief  Get the L1 cache size in kilobytes on Windows
///         and most Unix-like operating systems.
///
/// Copyright (C) 2015 Kim Walisch, <[email protected]>
///
/// This file is distributed under the BSD License.
///

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/// @file     segmented_sieve.cpp
/// @author   Kim Walisch, <[email protected]> 
/// @brief    This is a simple implementation of the segmented sieve of
///           Eratosthenes with a few optimizations. It generates the
///           primes below 10^9 in 0.8 seconds (single-threaded) on an
///           Intel Core i7-6700 3.4 GHz CPU.
/// @license  Public domain.

#include <iostream>
#include <algorithm>

kimwalisch

///
/// @file    constexpr_sqrt.cpp
/// @brief   Calculate integer square roots at compile time using
///          C++11 constexpr.
/// @author  Kim Walisch, <[email protected]>
/// @license Public Domain

#include <iostream>
#include <cassert>
#include <cmath>

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// Author: Kim Walisch
// Released into public domain

#include <windows.h>
#include <cstdlib>

typedef BOOL (WINAPI *LPFN_GLPI)(PSYSTEM_LOGICAL_PROCESSOR_INFORMATION, PDWORD);

/// Get the CPU's cache size in bytes.
/// Works on Windows (MSVC, Intel C++ Compiler, Cygwin, ...).

kimwalisch

-- Seach column name in database
select table_name from all_tab_columns where column_name like '%COLUMN_NAME%';

-- Seach table name in database
select table_name from all_tables where table_name like '%TABLE_NAME%';

kimwalisch

# Find all files KEYWORD
$ fgrep -R --files-with-matches KEYWORD .

# Find all files with FILENAME and KEYWORD
$ find . -name FILENAME -exec fgrep --files-with-matches KEYWORD {} \;

kimwalisch

wget --content-disposition -i urls.txt