Hi there,
I found very interesting behavior on casting double variables to integer.
The following code gives me strange result:
double dval = 0.;
int ival = (int)dval; // < ival = 2 - unexpected result
double dval1 = 0.0000001;
int ival2 = (int)dval2; // < ival = 0 - expected
In short words, if the double variable is '0.', then it is casted to integer as 2, does not matter int/long/char. If the variable differs the '0.' to any smallest values, it is casted correctly. Looks very strange for me. Casting from the float variables works as expected.
Environment:
SEGGER Embedded Studio v4.30
Development board PCA10040
Compiler GCC
FPU is enabled (ARM FP ABI Type: hard; ARM FPU Type FPv4-SP-D16)
To handle this I perform casting to float type before, and then to integer type.
What can I do wrong that the cast of the double variables with 0 value to the integer performed incorrectly?
Thank you.
