C: Two fer

c/two-fer/src/two_fer.c

@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include "two_fer.h"
+
+#define BUFFER_SIZE 100                           /* in test program */
+#define USED "One for , one for me."
+#define MAXLEN (int)(100-sizeof(USED))
+
+
+void two_fer(char *buf, const char *name)
+{
+    /* Ensure we do not overflow the test buffer:
+     * Return string is at most (BUFFER_SIZE-1) characters, that is
+     * BUFFER_SIZE including final '\0'.
+     */
+    sprintf(buf, "One for %.*s, one for me.", MAXLEN, name&&*name? name: "you");
+}
+
+
+/* See GNUmakefile below for explanation
+ * https://github.com/braoult/exercism/blob/master/c/templates/GNUmakefile
+ */
+#ifdef UNIT_TEST
+#include <string.h>
+int main(int ac, char **av)
+{
+    int arg=1;
+    char foo[200];
+
+    printf("MAXLEN=%d\n", MAXLEN);
+    for (; arg<ac; ++arg) {
+        two_fer(foo, av[arg]);
+        printf("two_fer= len=%lu str=[%s]\n", strlen(foo), foo);
+    }
+}
+#endif

c/two-fer/src/two_fer.h

@@ -0,0 +1,18 @@
+#ifndef TWO_FER_H
+#define TWO_FER_H
+
+void two_fer(char *buffer, const char *name);
+
+/* See GNUmakefile below for explanation
+ * https://github.com/braoult/exercism/blob/master/c/templates/GNUmakefile
+ */
+#if defined UNIT_TEST || defined DEBUG
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+#ifdef  TESTALL
+#undef  TEST_IGNORE
+#define TEST_IGNORE() {}
+#endif
+
+#endif