xref: /aosp_15_r20/external/musl/src/math/logbf.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453) 
1*c9945492SAndroid Build Coastguard Worker #include <math.h>
2*c9945492SAndroid Build Coastguard Worker 
logbf(float x)3*c9945492SAndroid Build Coastguard Worker float logbf(float x)
4*c9945492SAndroid Build Coastguard Worker {
5*c9945492SAndroid Build Coastguard Worker 	if (!isfinite(x))
6*c9945492SAndroid Build Coastguard Worker 		return x * x;
7*c9945492SAndroid Build Coastguard Worker 	if (x == 0)
8*c9945492SAndroid Build Coastguard Worker 		return -1/(x*x);
9*c9945492SAndroid Build Coastguard Worker 	return ilogbf(x);
10*c9945492SAndroid Build Coastguard Worker }
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