有没有更短的方法通过puts输出C int？

Question

I'm having to do the following a lot in a USB (libusb) C based command line utility I am writing:

char pid[20];
sprintf(pid, "Product ID : %#06x", anInteger);
puts(pid);

Is there a shorter, one-liner way to do this?

Answer 1

而不是使用sprintf ＆ puts ，只需更改为printf ：

printf("Product ID : %#06x", descriptor.idVendor);

Answer 2

使用printf？

printf("Product ID : %#06x\n", descriptor.idVendor);

Answer 3

Not with puts... You could use printf, but then you can't store the data in the pid variable. Unfortunately you can't have it both ways. You could make use of a glibc extension to printf if you're on Linux that allows you to register a custom printf format (Google should turn up something), but I don't recommend it just to save a line or two.