Data commit

Task/Repeat-a-string/C/repeat-a-string-1.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+char * string_repeat( int n, const char * s ) {
+  size_t slen = strlen(s);
+  char * dest = malloc(n*slen+1);
+
+  int i; char * p;
+  for ( i=0, p = dest; i < n; ++i, p += slen ) {
+    memcpy(p, s, slen);
+  }
+  *p = '\0';
+  return dest;
+}
+
+int main() {
+  char * result = string_repeat(5, "ha");
+  puts(result);
+  free(result);
+  return 0;
+}

Task/Repeat-a-string/C/repeat-a-string-2.c

@@ -0,0 +1,13 @@
+...
+char *string_repeat(const char *str, int n)
+{
+   char *pa, *pb;
+   size_t slen = strlen(str);
+   char *dest = malloc(n*slen+1);
+
+   pa = dest + (n-1)*slen;
+   strcpy(pa, str);
+   pb = --pa + slen;
+   while (pa>=dest) *pa-- = *pb--;
+   return dest;
+}

Task/Repeat-a-string/C/repeat-a-string-3.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+char * char_repeat( int n, char c ) {
+  char * dest = malloc(n+1);
+  memset(dest, c, n);
+  dest[n] = '\0';
+  return dest;
+}
+
+int main() {
+  char * result = char_repeat(5, '*');
+  puts(result);
+  free(result);
+  return 0;
+}