feat: add wc

Makefile

@@ -1,9 +1,14 @@
+CC := cc -g -Wall -Wextra -Werror -ansi
+
 .PHONY: all
 
-all: out out/sh
+all: out out/sh out/wc
 
 out:
 	mkdir -p -- $@
 
-out/sh: $(wildcard src/*.c)
-	cc -g -Wall -Wextra -Werror -ansi -o $@ $^
+out/sh: $(wildcard src/sh/*.c)
+	$(CC) -o $@ $^
+
+out/wc: $(wildcard src/wc/*.c)
+	$(CC) -o $@ $^

README.txt

@@ -0,0 +1,4 @@
+recreations
+====
+
+A repo where I drop all program recreations I can.

src/wc/main.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, char *argv[]) {
+  FILE *file;
+  if (argc > 1 && strcmp(argv[1], "-")) {
+    file = fopen(argv[1], "rb");
+    if (file == NULL) {
+      return 1;
+    }
+  } else {
+    file = stdin;
+  }
+
+  int current = fgetc(file);
+  unsigned int nb_lines = 0;
+
+  while (current != EOF) {
+    if (current == '\n') {
+      nb_lines++;
+    }
+
+    current = fgetc(file);
+  }
+
+  fclose(file);
+  printf("%d\n", nb_lines);
+
+  return 0;
+}