[riot-notifications] [RIOT-OS/RIOT] sys: add pseudomodule scanf_float (#11511)

zpw199062 notifications at github.com
Wed Jun 19 08:33:47 CEST 2019


> Hi,gdoffe
> 
> Thank you first for the efforts solving this problem . And I tried to use the Riot-master version that you merged this "float problem" into, and i use it now. I do find that you changed the Make.include part and the pseudomodules.inc.mk which is added the float part. And i then tried the suggestion that adding USEMODULE += scanf_float in Makefile. It is built and flashed successfully, but when i run it. I still cannot see any float number. You can see the picture below.
> ![image](https://user-images.githubusercontent.com/51306211/59731739-f6279c80-9279-11e9-8f4a-5df7ef75fb13.png)
> 
> And i want to show you my code for this part.
> ![image](https://user-images.githubusercontent.com/51306211/59731755-063f7c00-927a-11e9-85de-f432cd233f44.png)
> ![image](https://user-images.githubusercontent.com/51306211/59731763-0ccdf380-927a-11e9-8f73-d41c2d2472ee.png)
> 
> you can see that i defined the variable speed float type and try to print it ,but it still cannot work. Could you pls help me find the reason why?
> 
> Thanks so much!
> Best regard!
> By Peiwen

I don't get it,how to add the printf_float, what head file explain the function, could you pls tell me?

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