Commit 22562995 authored by Amir MOHAMMADI's avatar Amir MOHAMMADI

use std::nextafter instead of nexttoward

parent 6eddc958
Pipeline #15525 passed with stages
in 27 minutes 2 seconds
......@@ -126,7 +126,7 @@ double bob::measure::farThreshold(const blitz::Array<double, 1> &negatives,
double epsilon = std::numeric_limits<double>::epsilon();
// handle special case of far == 1 without any iterating
if (far_value >= 1 - epsilon)
return nexttoward(scores(0), scores(0)-1);
return std::nextafter(scores(0), scores(0)-1);
// Reverse negatives so the end is the start. This way the code below will be
// very similar to the implementation in the frrThreshold function. The
......@@ -139,7 +139,7 @@ double bob::measure::farThreshold(const blitz::Array<double, 1> &negatives,
// since the comparison is `if score >= threshold then accept as genuine`, we
// can choose the largest score value + eps as the threshold so that we can
// get for 0% FAR.
double valid_threshold = nexttoward(scores(current_position), scores(current_position)+1);
double valid_threshold = std::nextafter(scores(current_position), scores(current_position)+1);
double current_threshold;
double future_far;
while (current_position < total_count) {
......@@ -181,7 +181,7 @@ double bob::measure::frrThreshold(const blitz::Array<double, 1> &negatives,
double epsilon = std::numeric_limits<double>::epsilon();
// handle special case of frr == 1 without any iterating
if (frr_value >= 1 - epsilon)
return nexttoward(scores(scores.extent(0)-1), scores(scores.extent(0)-1)+1);
return std::nextafter(scores(scores.extent(0)-1), scores(scores.extent(0)-1)+1);
// Move towards the end of array changing the threshold until we pass the
// desired FRR value. Starting with a threshold that corresponds to FRR == 0.
......
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