Boost Filesystem Compile Error - c++

I'm writing some code that utilizes the boost filesystem library. Here is an excerpt of my code:
artist = (this->find_diff(paths_iterator->parent_path(), this->m_input_path) == 1) ? (*(paths_iterator->parent_path().end() - 1)) : (*(paths_iterator->parent_path().end() - 2));
album = (this->find_diff(paths_iterator->parent_path(), this->m_input_path) == 1) ? "" : (*(paths_iterator->parent_path().end() - 1));
Types:
artist and album are of type std::string
this->find_diff returns an int
this->m_input_path is a std::string
paths_iterator is of type std::vector(open bracket)boost::filesystem::path>::iterator
I get a compile error:
error C2039: 'advance' : is not a member of 'boost::filesystem::basic_path<String,Traits>::iterator' d:\development\libraries\boost\boost\iterator\iterator_facade.hpp on line 546
This code is part of a program that outputs a batch script that uses lame.exe to convert files into mp3s.
The music library this is designed for has the format:
root/artist/song
OR
root/artist/album/song
this->m_input_path is the path to root.
I'm not sure if I'm approaching the problem properly. If I am, how do I fix the error that I am getting?
EDIT:
My code is now:
boost::filesystem::path::iterator end_path_itr = paths_iterator->parent_path().end();
if(this->find_diff(paths_iterator->parent_path(), this->m_input_path) == 1) /* For cases where: /root/artist/song */
{
album = "";
end_path_itr--;
artist = *end_path_itr;
}
else /* For cases where: /root/artist/album/song */
{
end_path_itr--;
album = *end_path_itr;
end_path_itr--; <-- Crash Here
artist = *end_path_itr;
}
The error that I now get is:
Assertion failed: itr.m_pos && "basic_path::iterator decrement pat begin()", file ... boost\filesystem\path.hpp, line 1444

basic_path::iterator is a bidirectional iterator. So arithmetic with -1 and -2 is not allowed. Operators + and - between an iterator and an integer value is defined for a RandomAccessIterator.
Instead of using .end()-1, you could resort to using --.

Your new error indicates that your end_path_iter doesn't have enough elements (should that be "decrement past begin"?), i.e. your path is shorter than you expect.

Related

More than one input is Const Op

I am trying to serve the following gitrepo in opencv: https://github.com/una-dinosauria/3d-pose-baseline and the checkpoint data can be found at the following link: https://drive.google.com/file/d/0BxWzojlLp259MF9qSFpiVjl0cU0/view
I have already constructed a frozen graph which I can serve in python and was generated using the following script:
meta_path = 'checkpoint-4874200.meta' # Your .meta file
output_node_names = ['linear_model/add_1'] # Output nodes
export_dir=os.path.join('export_dir')
graph=tf.Graph()
with tf.Session(graph=graph) as sess:
# Restore the graph
loader=tf.train.import_meta_graph(meta_path)
loader.restore(sess,'checkpoint-4874200')
builder=tf.saved_model.builder.SavedModelBuilder(export_dir)
builder.add_meta_graph_and_variables(sess,
[tf.saved_model.SERVING],
strip_default_attrs=True)
# Freeze the graph
frozen_graph_def = tf.graph_util.convert_variables_to_constants(
sess,
sess.graph_def,
output_node_names)
# Save the frozen graph
with open('C:\\Users\\FrozenGraph.pb', 'wb') as f:
f.write(frozen_graph_def.SerializeToString())
Then I optimized the graph by running:
optimized_graph_def=optimize_for_inference_lib.optimize_for_inference(
frozen_graph_def,
['inputs/enc_in'],
['linear_model/add_1'],
tf.float32.as_datatype_enum)
g=tf.gfile.FastGFile('optimized_inference_graph.pb','wb')
g.write(optimized_graph_def.SerializeToString())
and the optimized frozen graph can be found at: https://github.com/alecda573/frozen_graph/blob/master/optimized_inference_graph.pb
When I try to run in opencv the following I get this runtime error:
OpenCV(4.3.0) Error: Unspecified error (More than one input is Const op) in cv::dnn::dnn4_v20200310::`anonymous-namespace'::TFImporter::getConstBlob, file C:\build\master_winpack-build-win64-vc15\opencv\modules\dnn\src\tensorflow\tf_importer.cpp, line 570
Steps to reproduce
To reproduce problem you just need to download the frozen graph from the above link or create yourself from the checkpoint data and then call the following in opencv with the below headers:
#include <iostream>
#include <vector>
#include <cmath>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc.hpp>
#include "opencv2/dnn.hpp"
string pbFilePath = "C:/Users/optimized_inferene_graph.pb";
//Create 3d-pose-baseline model
cv::dnn::Net inputNet;
inputNet = cv::dnn::readNetFromTensorflow(pbFilePath);
Would love to know if anyone has any thoughts on how to address this error.
You can see the frozen graph and optimize graph I generated with tensorboard from the attached photos.
I have a feeling the error is arising from the training flag inputs but I am not certain, and I do not want to go trying to edit the graph if that is not the problem.
I am attaching the function in opencv that is causing the issue:
const tensorflow::TensorProto& TFImporter::getConstBlob(const tensorflow::NodeDef &layer, std::map<String, int> const_layers,
int input_blob_index, int* actual_inp_blob_idx) {
if (input_blob_index == -1) {
for(int i = 0; i < layer.input_size(); i++) {
Pin input = parsePin(layer.input(i));
if (const_layers.find(input.name) != const_layers.end()) {
if (input_blob_index != -1)
CV_Error(Error::StsError, "More than one input is Const op");
input_blob_index = i;
}
}
}
if (input_blob_index == -1)
CV_Error(Error::StsError, "Const input blob for weights not found");
Pin kernel_inp = parsePin(layer.input(input_blob_index));
if (const_layers.find(kernel_inp.name) == const_layers.end())
CV_Error(Error::StsError, "Input [" + layer.input(input_blob_index) +
"] for node [" + layer.name() + "] not found");
if (kernel_inp.blobIndex != 0)
CV_Error(Error::StsError, "Unsupported kernel input");
if(actual_inp_blob_idx) {
*actual_inp_blob_idx = input_blob_index;
}
int nodeIdx = const_layers.at(kernel_inp.name);
if (nodeIdx < netBin.node_size() && netBin.node(nodeIdx).name() == kernel_inp.name)
{
return netBin.node(nodeIdx).attr().at("value").tensor();
}
else
{
CV_Assert_N(nodeIdx < netTxt.node_size(),
netTxt.node(nodeIdx).name() == kernel_inp.name);
return netTxt.node(nodeIdx).attr().at("value").tensor();
}
}
As you pointed out, the error originates in getConstBlob (https://github.com/opencv/opencv/blob/master/modules/dnn/src/tensorflow/tf_importer.cpp#L570). getConstBlobis called several times in populateNet (https://github.com/opencv/opencv/blob/master/modules/dnn/src/tensorflow/tf_importer.cpp#L706), which is called in all overloaded definitions of readNetFromTensor (https://github.com/opencv/opencv/blob/master/modules/dnn/src/tensorflow/tf_importer.cpp#L2278). Those may be starting points for where to place breakpoints if you want to step through with a debugger.
The other thing I noticed is that the definition of populateNet which I believe you're using (supplying a std::string: https://docs.opencv.org/master/d6/d0f/group__dnn.html#gad820b280978d06773234ba6841e77e8d) requires two arguments - both the model path (model) and a configuration (config`), which is optional and defaults to an empty string. In the unit tests, it looks like there are both cases - with and without configuration provided (https://github.com/opencv/opencv/blob/master/modules/dnn/test/test_tf_importer.cpp). I'm not sure if that would have an impact.
Lastly, in the script you provided to replicate the results, I believe the model file name is misspelled - it says optimized_inferene_graph.pb, but the file you point to in the github repo is spelled optimized_inference_graph.pb.
Just a few suggestions, I hope this may help!

as_ldt_init failed to initialize -- C++ client

just day before i started to work with aerospike. I have some problem while writing one sample using LDT (Large data types -- Large List). I want to create a key with currdate with appended as key (20160419_2000_List) and later i will add raw data (byte array) as list values.
For that i am able to connect the database correctly, but i am not able to create key for list. Can you please guide me on this.
You can refer the following code to get idea of what i am doing exactly.
m_sTFPKeyStr.assign(datevalue); //datavalue consists datatime string
m_sTFPListStr.assign("List_");
m_sTFPListStr.append(datevalue);
as_key_init_str(&m_sTFPKey, m_sInputNameSpace.c_str(), m_sInputSetName.c_str(), m_sTFPKeyStr.c_str());
if (!as_ldt_init(m_sTFPListKey, m_sTFPListStr.c_str(), AS_LDT_LLIST, NULL))
{
memset(logmessage, 0x0, sizeof(logmessage));
sprintf(logmessage, "CDataBaseManager::SaveTFP Fails to initialize tfplist key %s", m_sTFPListStr.c_str());
m_pCaptureManager->m_pLogMgr->LogMsg(logmessage);
return;
}
Check the length of m_sTFPListStr in your code.
The codes of function as_ldt_init which will check the parameters :
as_ldt * as_ldt_init(as_ldt * ldt, const as_bin_name name, const as_ldt_type type, const as_udf_module_name module)
{
if (!name || name[0] == '\0' || strlen(name) > AS_BIN_NAME_MAX_LEN
|| (module && strlen(module) > AS_UDF_MODULE_MAX_LEN) )
{
return NULL;
}
...
}
As the value of AS_BIN_NAME_MAX_LEN:
#define AS_BIN_NAME_MAX_LEN (AS_BIN_NAME_MAX_SIZE - 1)
#define AS_BIN_NAME_MAX_SIZE 15

Error while compiling protocol buffer on mac

I am following the tutorial for protocol buffers and I keep running into different errors while compiling. my addressbook.proto file is in /Users/flexmaster411/protobuffer
protoc -I=/Users/flexmaster411/protobuffer --python_out= /Users/flexmaster411/protobuffer/addressbook.proto /Users/flexmaster411/protobuffer
I keep getting the following error even though I have syntax = "proto3" on my proto file
[libprotobuf WARNING google/protobuf/compiler/parser.cc:471] No syntax specified for the proto file. Please use 'syntax = "proto2";' or 'syntax = "proto3";' to specify a syntax version. (Defaulted to proto2 syntax.)
Not sure if I have correctly done the destination folders set up which is causing this or not Any help appreciated
syntax = "proto3";
package tutorial;
message Person {
string name = 1;
int32 id = 2; // Unique ID number for this person.
string email = 3;
enum PhoneType {
MOBILE = 0;
HOME = 1;
WORK = 2;
}
message PhoneNumber {
string number = 1;
PhoneType type = 2;
}
repeated PhoneNumber phones = 4;
}
// Our address book file is just one of these.
message AddressBook {
repeated Person people = 1;
}
It looks like you reversed the order of the parameters. /Users/flexmaster411/protobuffer is your output directory, so it should appear with --python_out. Since you specified it second, protoc thinks you're telling it that /Users/flexmaster411/protobuffer is an input. So it's trying to open a directory and then parse it as a .proto file. Amusingly, read() on a directory returns no data, which protoc interprets as a perfectly valid .proto file that simply doesn't declare anything! But it then gives you a warning because this empty file doesn't have any syntax line.
I think what you meant to type is:
protoc -I=/Users/flexmaster411/protobuffer --python_out=/Users/flexmaster411/protobuffer /Users/flexmaster411/protobuffer/addressbook.proto

How do I create a loop in omnet++?

How do I create a loop in omnet ++ with a user defined variable.
I tried the following but it gave me an error:
network Network{
parameters:
int n #prompt("enter number") = default(2);
connections:
for i=0..n do { // here the n gives me a syntax error (unexpected NAME, expected {
//do things
}
Have a look at the OMNeT++ manual. The for syntax is without do, e.g.
for i = 0..count-2 {
node[i].port[1] <--> node[i+1].port[0];
}

QT UTC linux Clock skew detected. Your build may be incomplete

I have a code which I am writing it in QT (C++) where I want to display a date on a dateTime display on the GUI.. I get the time from another component and then I parse it into argument list and then I use Qprocess to run date - u command .. anyhow it seems like my make doesn't like what I am doing because it prints out this error:
QT UTC linux Clock skew detected. Your build may be incomplete.
the whole purpose of what I am doing is to update the UTC time of my linux computer according to the value I am getting and then gets that date using QT code to get the computer UTC time
here is part of the code :
if(month<10)
{
argument = "0"+ argument + QString::number(month);
}
else
{
argument = argument + QString::number(month);
}
if(day<10)
{
argument = "0"+ argument + QString::number(day);
}
else
{
argument = argument + QString::number(day);
}
if(hourUTC<10)
{
argument = "0" + argument + QString::number(hourUTC);
}
else
{
argument = argument + QString::number(hourUTC);
}
if(minUTC<10)
{
argument = "0"+ argument + QString::number(minUTC);
}
else
{
argument = argument + QString::number(minUTC);
}
argument = argument + QString::number(year);
argument = argument + ".";
if(secUTC<10)
{
argument = "0"+ argument + QString::number(secUTC);
}
else
{
argument = argument + QString::number(secUTC);
}
//argument = argument + QString::number((qint32)qRound(msUTC/ 1000.0));
argumentlist << argument;
qDebug() << argumentlist;
QProcess* proc = new QProcess();
// Change system date and time "date -u MMDDhhmmYYYY.ss" in tha application the date is created dynamically
proc->start(program, argumentlist);
proc->waitForFinished();
m_pOi->setTime();
any idea how can I force the change in time to my compute ? and yea I do run the code as a super user !
I think this error happens when your file times are newer than your system clock. make warns you that it may not be building everything correctly because of this. touching all your files should sort out the problem.
One of the causes is an SCM system that preserves file times and is ahead of your system clock.