topic Re: Type changing problem (Float to Int) in CodeWarrior Development Tools

Type changing problem (Float to Int)

monstor — Thu, 16 Jul 2015 01:39:00 GMT

When I change a Floating point number to unsigned integer and compile the source code, the compiler would tell me some error as below

Link Error : L1822 : Symbol _FUFLOAT in file C:\...........................\......c.o is undefined.

Link Error : L1822 : Symbol _FMUL in file C:\.........................................c.o is undefined.

Link Error : L1822 : Symbol _FADD in file C:\.........................................c.o is undefined.

Link Error : L1822 : Symbol _FDIV in file C:\.........................................c.o is undefined.

Link Error : L1822 : Symbol _FUTRUNC in file C:\.........................................c.o is undefined.

Below is my source code.

#include <stdlib.h>

#include <stdio.h>

#include <float.h>

#include <hidef.h>

uint16_t TempBuffer;

float TempBufferF;

int main() {

TempBuffer = (uint16_t) TempBufferF;

return 0;

}

I already put the header file "hidef.h". It seems cannot help.

Please help.

Carlos_Mendoza — Thu, 16 Jul 2015 14:03:15 GMT

Hi Henry,

Could you tell us which MCU are you using?

Best Regards,

Carlos Mendoza

Technical Support Engineer

monstor — Fri, 17 Jul 2015 06:56:15 GMT

Dear Carlos,

I am using S12DP512 now. I just change the library from Ansib.lib to

Ansibf.lib. It seems can work. Is this method correct?

Best regards,

Henry

Carlos_Mendoza — Mon, 20 Jul 2015 21:51:30 GMT

Hi Henry,

Thanks for your response.

Your change from Ansib.lib to Ansibf.lib is correct, you need to use ansibf.lib rather than ansib.lib to enable floating point support.

Hope it helps!

Best Regards,

Carlos Mendoza

Technical Support Engineer