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Commit e2c279e8 authored by Jeff Brown's avatar Jeff Brown
Browse files

Add FloatMath.pow. 

Change-Id: I5c584f4894caba47fccfa22ba95f8665990d516c
parent 5356c7dc

api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -22896,6 +22896,7 @@ package android.util { 
    method public static float exp(float);

    method public static float floor(float);

    method public static float hypot(float, float);

    method public static float pow(float, float);

    method public static float sin(float);

    method public static float sqrt(float);

  }

core/java/android/util/FloatMath.java

+10 −0
Original line number Diff line number Diff line
@@ -81,6 +81,16 @@ public class FloatMath { 
     */

    public static native float exp(float value);



    /**

     * Returns the closest float approximation of the result of raising {@code

     * x} to the power of {@code y}.

     *

     * @param x the base of the operation.

     * @param y the exponent of the operation.

     * @return {@code x} to the power of {@code y}.

     */

    public static native float pow(float x, float y);



    /**

     * Returns {@code sqrt(}<i>{@code x}</i><sup>{@code 2}</sup>{@code +} <i>

     * {@code y}</i><sup>{@code 2}</sup>{@code )}.

core/jni/android_util_FloatMath.cpp

+5 −0
Original line number Diff line number Diff line
@@ -30,6 +30,10 @@ public: 
        return expf(x);

    }



    static float PowF(JNIEnv* env, jobject clazz, float x, float y) {

        return powf(x, y);

    }



    static float HypotF(JNIEnv* env, jobject clazz, float x, float y) {

        return hypotf(x, y);

    }
@@ -42,6 +46,7 @@ static JNINativeMethod gMathUtilsMethods[] = { 
    {"cos", "(F)F", (void*) MathUtilsGlue::CosF},

    {"sqrt", "(F)F", (void*) MathUtilsGlue::SqrtF},

    {"exp", "(F)F", (void*) MathUtilsGlue::ExpF},

    {"pow", "(FF)F", (void*) MathUtilsGlue::PowF},

    {"hypot", "(FF)F", (void*) MathUtilsGlue::HypotF},

};