2.10

1 files changed, 21 insertions, 0 deletions

diff --git a/2/10.c b/2/10.c
new file mode 100644
index 0000000..8e23af7
--- /dev/null
+++ b/2/10.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+
+/* converts ASCII c to lowercase */
+int lower(int c) { return c >= 'A' && c <= 'Z' ? c + 'a' - 'A' : c; }
+
+int main(int argc, char *argv[]) {
+  int c;
+
+  for (;;) {
+    printf("Enter char to convert to lowercase.\n");
+    c = getchar();
+    if (c == EOF)
+      break;
+    else
+      printf("%c\n", lower(c));
+    
+    getchar();
+  }
+
+  return 0;
+}
\ No newline at end of file