first commit

1 files changed, 19 insertions, 0 deletions

diff --git a/memset.c b/memset.c
new file mode 100644
index 0000000..06db271
--- /dev/null
+++ b/memset.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main()
+{
+  int i;
+  char *a = malloc(5 * sizeof(char));
+
+  // 配列の要素を全て0に設定
+  memset(a, 0, 5*sizeof(char));
+
+  for (i = 0; i < 5; ++i) {
+    printf("a[%d] = %d,", i, a[i]);
+  }
+
+  // => a[0] = 0, a[1] = 0, a[2] = 0, a[3] = 0, a[4] = 0,
+  free(a);
+}