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How to show float on console?

Altera_Forum
Honored Contributor II
‎11-07-2008 07:04 AM
1,124 Views

I want to print float on console. 

In code : 

double a; 

printf("the num is %f/n",a); 

but ,in nios the result is： 

the num is  

 

no float!who can help me ?
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Altera_Forum
Honored Contributor II
‎11-07-2008 07:39 AM
430 Views

If you are using the small newlib c library, it has not float support with printf() by specification.

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Altera_Forum
Honored Contributor II
‎11-07-2008 08:29 AM
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isn't %f for floats only? I believe you need %lf to print a double.

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