weird parsed error: std::pair<int,std::pair<int,int>>，std::pair<std::string, std::pair<int,int>>

[ericxsun]

pom of chilitags is not changed. (version: javacpp-presets 1.4.3-SNAPSHOT)

I added two simple lines in chilitags/src/main/java/org/bytedeco/javacpp/presets/chilitags.java,

.put(new Info("std::pair<int,int>").pointerTypes("IntIntPair").define())
.put(new Info("std::pair<int,std::pair<int,int> >").pointerTypes("IntIntPairIntPair").define())

while compiling with mvn clean install --projects .,chilitags , weird errors occurred
first one:

JNIEXPORT jobject JNICALL Java_org_bytedeco_javacpp_chilitags_00024IntIntPairIntPair_second__I(JNIEnv* env, jobject obj, jint arg0) {
    ::std::pair<int,std::pair<int,int> >* ptr = (::std::pair<int,std::pair<int,int> >*)jlong_to_ptr(env->GetLongField(obj, JavaCPP_addressFID));
    if (ptr == NULL) {
        env->ThrowNew(JavaCPP_getClass(env, 8), "This pointer address is NULL.");
        return 0;
    }
    jlong position = env->GetLongField(obj, JavaCPP_positionFID);
    ptr += position;
    jobject rarg = obj;
    ptr->second = arg0;
    return rarg;
}

/chilitags/target/classes/org/bytedeco/javacpp/jnichilitags.cpp:2375:17: error: no viable overloaded '='
    ptr->second = arg0;
    ~~~~~~~~~~~ ^ ~~~~

second one:

JNIEXPORT jint JNICALL Java_org_bytedeco_javacpp_chilitags_00024IntIntPairIntPair_second__(JNIEnv* env, jobject obj) {
    ::std::pair<int,std::pair<int,int> >* ptr = (::std::pair<int,std::pair<int,int> >*)jlong_to_ptr(env->GetLongField(obj, JavaCPP_addressFID));
    if (ptr == NULL) {
        env->ThrowNew(JavaCPP_getClass(env, 8), "This pointer address is NULL.");
        return 0;
    }
    jlong position = env->GetLongField(obj, JavaCPP_positionFID);
    ptr += position;
    jint rarg = 0;
    int rval = ptr->second;
    rarg = (jint)rval;
    return rarg;
}

chilitags/target/classes/org/bytedeco/javacpp/jnichilitags.cpp:2387:9: error: no viable conversion from 'std::__1::pair<int, int>' to 'int'
    int rval = ptr->second;
        ^      ~~~~~~~~~~~

type of ptr's second value is std::pair<int, int>, why that was int <---> std::pair<int, int> conversion.

Thanks a lot for your help.

[ericxsun]

When only adding

.put(new Info("std::pair<int,int>").pointerTypes("IntIntPair").define())
.put(new Info("std::pair<std::string,std::pair<int,int> >").pointerTypes("IntIntPairStringPair").define())

such error will occur

JNIEXPORT jint JNICALL Java_org_bytedeco_javacpp_chilitags_00024IntIntPairStringPair_first__(JNIEnv* env, jobject obj) {
    ::std::pair<std::string,std::pair<int,int> >* ptr = (::std::pair<std::string,std::pair<int,int> >*)jlong_to_ptr(env->GetLongField(obj, JavaCPP_addressFID));
    if (ptr == NULL) {
        env->ThrowNew(JavaCPP_getClass(env, 8), "This pointer address is NULL.");
        return 0;
    }
    jlong position = env->GetLongField(obj, JavaCPP_positionFID);
    ptr += position;
    jint rarg = 0;
    int rval = ptr->first;
    rarg = (jint)rval;
    return rarg;
}

chilitags/target/classes/org/bytedeco/javacpp/jnichilitags.cpp:2336:9: error: no viable conversion from 'std::__1::basic_string<char>' to 'int'
    int rval = ptr->first;
        ^      ~~~~~~~~~~

[ericxsun]

@saudet Is there any plan and schedule to fix it?

[saudet]

Yes, I'll look into that shortly. Thanks for reporting!

[saudet]

I've fixed that with commit bytedeco/javacpp@2f4e1d2, thanks for reporting!

[ericxsun]

@saudet Thank you a lot.

[saudet]

Fix included in JavaCPP 1.4.3! Thanks again for reporting.