colematt

// Assuming 64-bit long
unsigned long np2(unsigned long x) {
  --x;
  x |= x >> 1;
  x |= x >> 2;
  x |= x >> 4;
  x |= x >> 8;
  x |= x >> 16;
  x |= x >> 32;
  ++x;

colematt

#include <locale.h>
#include <stdio.h>

int main(int argc, char* argv[]){
  
  setlocale(LC_ALL, "");
  printf("LC_ALL: %s\n", setlocale(LC_ALL, NULL));
  printf("LC_CTYPE: %s\n", setlocale(LC_CTYPE, NULL));

  return 0;

colematt

# Check to see if a package named ansible is installed
if [ "$(dpkg -l | awk '/ansible/ {print }'|wc -l)" -ge 1 ]; then
  echo OK
else
  echo FAIL
fi

colematt

// sudo apt update && apt install wordnet-dev
#include <stdio.h>
#include <stdlib.h>

char *pickword(char *file)
{
    FILE *fp = fopen(file, "r");
    if (!fp) perror(file), exit(1);
    fseek(fp, 0, SEEK_END);
    long end = ftell(fp);

colematt

Fix ‘numeric_limits’ is not a member of ‘std’ error in LLVM 10.0

This problem has been verified in both of the LLVM 10.0.0 and 10.0.1 releases' monorepos. The problem and fix is shown for 10.0.1, but the patch can be applied to a 10.0.0 monorepo.

Problem

[3273/3351] Building CXX object utils/.../benchmark.dir/benchmark_register.cc.o
FAILED: utils/benchmark/src/CMakeFiles/benchmark.dir/benchmark_register.cc.o 
/usr/bin/c++ -DHAVE_POSIX_REGEX -DHAVE_STD_REGEX -DHAVE_STEADY_CLOCK -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Dbenchmark_EXPORTS -I/home/matthew/llvm-project-10.0.1/build/utils/benchmark/src -I/home/matthew/llvm-project-10.0.1/llvm/utils/benchmark/src -I/usr/include/libxml2 -I/home/matthew/llvm-project-10.0.1/build/include -I/home/matthew/llvm-project-10.0.1/llvm/include -I/home/matthew/llvm-project-10.0.1/llvm/utils/benchmark/include -I/home/matthew/llvm-project-10.0.1/llvm/utils/benchmark/src/../include -fPIC -fvisibility-inlines-hidden 

colematt

#include <locale.h>
#include <stdio.h>
#include <wchar.h>

/* REFERENCES 
 * Control Block: http://unicode.org/charts/PDF/U0000.pdf
 * Control Pictures: http://unicode.org/charts/PDF/U2400.pdf
 */

int main(int argc, char* argv[]) {

colematt

Connecting to Remote by SSH

• Virtual Private Network (VPN)
  • Windows
  • MacOS
  • Linux
• Secure Shell (SSH) Client
  • Windows

colematt

CFLAGS=-g -Wall -std=c99
LDFLAGS=
LDLIBS=-lcunit
RMFLAGS=-f

all: basic

.PHONY: clean
clean:
	$(RM) $(RMFLAGS) basic

colematt

#include <stdint.h> // uint64_t
#include <stdio.h>  // printf

uint64_t twiddle(uint64_t x) {
  uint64_t smallest, ripple, new_smallest, ones;

  if (x == 0)
    return 0;
  smallest = (x & -x);
  ripple = x + smallest;

colematt

How to generate an LLVM docset for Dash

Prerequisites

brew install swiftdocorg/formulae/docsetutil
sudo ln -s /usr/local/bin/docsetutil /Library/Developer/CommandLineTools/usr/bin/docsetutil
brew install doxygen graphviz