com_misoo_gx05_nativejniadder.c

基于ANdroid平台的高欢堂书籍的对应源代码 非常有用

/*  com_misoo_gx05_NativeJniAdder.c    */
#include "HalfAdder.h"
#include "com_misoo_gx05_NativeJniAdder.h"
extern void* HalfAdderNew();
JNIEXPORT jlong JNICALL
    Java_com_misoo_gx05_NativeJniAdder_newObject(JNIEnv *env, jclass c){
    HalfAdder* hadder = (HalfAdder*)HalfAdderNew();
    return (jlong)hadder;
}
JNIEXPORT jlong JNICALL
    Java_com_misoo_gx05_NativeJniAdder_execute(JNIEnv *env, jclass c, jlong   refer, jint digit_1, jint digit_2){
    HalfAdder* hadder = (HalfAdder*)refer;
    hadder->set_digits(hadder, digit_1, digit_2);
    hadder->run(hadder);
    long k = hadder->get_carry(hadder)*10 + hadder->get_sum(hadder);
    return k;
}