Problem:
xcrun: error: invalid active developer path (/Applications/Xcode.app/Contents/Developer/), missing xcrun at: /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun
Solution:
xcode-select --install
# optional
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#define HASHMAP_SIZE 16 | |
typedef struct entry_t { | |
char *key; | |
char *value; | |
struct entry_t *next; |
(ns zelark.small-life | |
(:require [clojure.pprint :refer [pprint]])) | |
(defn empty-board | |
"Creates a rectangular empty board of the specified width | |
and height." | |
[w h] | |
(vec (repeat w (vec (repeat h nil))))) | |
(defn populate |
#include "mpc.h" | |
#include <editline/readline.h> | |
#define LASSERT(args, cond, fmt, ...) \ | |
if (!(cond)) { \ | |
lval* err = lval_err(fmt, ##__VA_ARGS__); \ | |
lval_del(args); \ | |
return err; \ | |
} |
(def input [1,12,2,3, 1,1,2,3, 1,3,4,3, 1,5,0,3, 2,13,1,19, 1,5,19,23, 2,10,23,27, 1,27,5,31, 2,9,31,35, 1,35,5,39, 2,6,39,43, 1,43,5,47, 2,47,10,51, 2,51,6,55, 1,5,55,59, 2,10,59,63, 1,63,6,67, 2,67,6,71, 1,71,5,75, 1,13,75,79, 1,6,79,83, 2,83,13,87, 1,87,6,91, 1,10,91,95, 1,95,9,99, 2,99,13,103, 1,103,6,107, 2,107,6,111, 1,111,2,115, 1,115,13,0, 99,2,0,14, 0]) | |
(defn add [m p1 p2 p3] | |
(let [a (get m p1) | |
b (get m p2)] | |
(assoc m p3 (+ a b)))) | |
(defn mul [m p1 p2 p3] | |
(let [a (get m p1) | |
b (get m p2)] |
Problem:
xcrun: error: invalid active developer path (/Applications/Xcode.app/Contents/Developer/), missing xcrun at: /Applications/Xcode.app/Contents/Developer/usr/bin/xcrun
Solution:
xcode-select --install
# optional
A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.
How to use:
Summary
;; For supporting more PG types, see https://github.com/remodoy/clj-postgresql | |
(ns pg-test.types | |
(:require [cheshire.core :as json] | |
[clojure.java.jdbc :as jdbc]) | |
(:import [org.postgresql.util PGobject] | |
[java.sql PreparedStatement])) | |
;; Writing | |
(defn- to-pg-json [data json-type] |
(ns test.bmi | |
(:require [reagent.core :as reagent])) | |
(defonce bmi-data (reagent/atom { :height 180 :weight 80 })) | |
(defn- calc! [param value] | |
(swap! bmi-data assoc param value) | |
(let [{:keys [height weight bmi]} @bmi-data |
(defproject helloworld "0.1.0-SNAPSHOT" | |
:description "FIXME: write this!" | |
:url "http://example.com/FIXME" | |
:license {:name "Eclipse Public License" | |
:url "http://www.eclipse.org/legal/epl-v10.html"} | |
:min-lein-version "2.7.1" |