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Reynard

Casting To A Bool

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I am unable to cast any data type greater than a char to a bool.

 

bool			myFlag = false;
unsigned int	myInt;

void main()
{
myInt = 0xffff;
myFlag = (myInt & 0x0100);
}

 

Produces:-

bool			myFlag = false;
001C  9003		  BCF gbl_myFlag,0

unsigned int	myInt;

void main()

{
myInt = 0xffff;
0008  6801		  SETF gbl_myInt
000A  6802		  SETF gbl_myInt+D'1'

myFlag = (myInt & 0x0100);
000C  0E00		  MOVLW 0x00
000E  1401		  ANDWF gbl_myInt, W
0010  6E04		  MOVWF CompTempVar586
0012  9003		  BCF gbl_myFlag,0
0014  5004		  MOVF CompTempVar586, W
0016  A4D8		  BTFSS STATUS,Z
0018  8003		  BSF gbl_myFlag,0

}

 

It doesn't know "myInt" is an int.

 

SB 7.01, PIC18F4580, XP Pro SP3

 

Cheers

 

Reynard

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