waltervargas

int* range(int start, int end) {
    int len;
    if (start <= end) {
        len = end - start + 1;
    } else {
        len = start - end + 1;
    }
    int* array = malloc(sizeof(int) * len);
    if (start == end){
        array[0] = start;

waltervargas

Colima vs Lima

vms created with colima cannot be managed by limactl

➜  ~ limactl list
NAME    STATUS     SSH                VMTYPE    ARCH       CPUS    MEMORY    DISK      DIR
lima    Running    127.0.0.1:54560    qemu      aarch64    4       4GiB      100GiB    ~/.lima/lima

waltervargas

module tinygowifi

go 1.18

replace device/arm => /usr/local/lib/tinygo/src/device/arm

replace internal/reflectlite => /usr/local/lib/tinygo/src/internal/reflectlite

replace internal/task => /usr/local/lib/tinygo/src/internal/task

waltervargas

CREATE OR REPLACE FUNCTION restful.put(auri character varying, ajson_text text)
 RETURNS text
 LANGUAGE plperlu
 SECURITY DEFINER
AS $function$
  use REST::Client;  
  use Encode qw(encode);
  my $client = REST::Client->new();    
  $client->getUseragent()->proxy( 'https', 'http://some-proxy/' ); # use for proxy authentication
  $client->addHeader('Content-Type', 'application/json');          # headers

waltervargas

Type Generic Macros in C

source

#define sin(X) _Generic((X), \
   float: sinf, \
   double: sin, \
   long double: sinl \
)(X)

waltervargas

Predefined Macros in C

You can get the list of predefined macros for a source file in C by using the clang or gcc flags -E -dM

λ walter [learning-c/effective-c/ch8] → clang -E -dM readchar.c 

waltervargas

Reading char files in C

λ walter [learning-c/effective-c/ch8] → cat > signals.txt <<EOF   
heredoc> 1 HUP   Hangup
2 INT   Interrupt
3 QUIT  Quit
4 ILL   Illegal instruction
5 TRAP  Trace trap
6 ABRT  Abort

waltervargas

Writing char files in C

cc charfile.c

λ walter [learning-c/effective-c/ch8] → ./a.out      
file position after write: 27
file position after write: 54

waltervargas

aws organizations list-accounts | jq -r '.[] | .[] | [.Id, .Name] | @csv' | perl -pe 's|,|,   //|'

waltervargas

cat template.json | jq '.Parameters | [ to_entries[] | {ParameterKey: .key, ParameterValue: ""} ]'