first commit

1 files changed, 23 insertions, 0 deletions

diff --git a/calloc.c b/calloc.c
new file mode 100644
index 0000000..1f3bf66
--- /dev/null
+++ b/calloc.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+  char *mem_allocation;
+
+  // 動的メモリ確保(0で初期化)
+  mem_allocation = calloc(20, sizeof(char));
+  if (mem_allocation == NULL) {
+    fprintf(stderr, "メモリ確保失敗\n");
+    return 1;
+  } else {
+    mem_allocation[0] = 't';
+    mem_allocation[1] = 'e';
+    mem_allocation[2] = 's';
+    mem_allocation[3] = 't';
+  }
+
+  printf("格納した文字列 : %s\n", mem_allocation);
+  free(mem_allocation);
+  // => test
+}