Data commit

Task/String-concatenation/Objective-C/string-concatenation.m

@@ -0,0 +1,20 @@
+#import <Foundation/Foundation.h>
+
+int main()
+{
+  @autoreleasepool {
+
+    NSString *s = @"hello";
+    printf("%s%s\n", [s UTF8String], " literal");
+
+    NSString *s2 = [s stringByAppendingString:@" literal"];
+    // or, NSString *s2 = [NSString stringWithFormat:@"%@%@", s, @" literal"];
+    puts([s2 UTF8String]);
+    /* or */
+    NSMutableString *s3 = [NSMutableString stringWithString: s];
+    [s3 appendString: @" literal"];
+    puts([s3 UTF8String]);
+
+  }
+  return 0;
+}