On Thursday, 26 February 2015 at 11:12:42 UTC, Kingsley wrote:
On Thursday, 26 February 2015 at 11:04:58 UTC, Baz wrote:
On Thursday, 26 February 2015 at 10:55:43 UTC, Kingsley wrote:
float oneDegree = (PI / 180.0);
float first = -(oneDegree * 10.0);
float second = (oneDegree * 10.0);
float step = 0.000001;
float[] r = iota(first,second,step).array;

writeln(r);

float item = 0.174531;
writeln(r.canFind(item));


// returns false for canFind - even though that float is in the array ???

also mark your float litteral with the f postfix. By default FP litterals are double...IIRC

float oneDegree = (PI / 180.0f);
float first = -(oneDegree * 10.0f);
float second = (oneDegree * 10.0f);
float step = 0.000001f;


Hardcoding the double[] does work as expected - so why doesn't it work with the iota generated array?

double oneDegree = (PI / 180.0);
double first = -(oneDegree * 10.0);
double second = (oneDegree * 10.0);
double step = 0.000001;
double[] r = iota(first,second,step).array;

writeln(r);

double[] hardCoded = [ 0.174521, 0.174522, 0.174523, 0.174524, 0.174525, 0.174526, 0.174527, 0.174528, 0.174529, 0.17453, 0.174531, 0.174532];

double item = 0.174531;
writeln(r.canFind(item));  // false - I expect true!!!!

writeln(hardCoded.canFind(item)); // true - as I expect
float[] r = iota(first,second,step).array;

writeln(r);

float item = 0.174531f;
writeln(r.canFind(item));

Adding the f still produces a false result. Also I tried changing all to double but still not working - I always get false back. Interestingly if I harcode the output of the iota into an array - then things start to work as I expect.

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