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My character counting code is miscounting characters. Why?
fixed the issue. Will look into that further The input file has 4 items but the program seems to be counting more items. I was trying to create a function that would count the items that were capitals within the text file. , You see inconsistent numb
TAG :cpp
Date : August 04 2020, 11:00 AM , By : Vilmar Almeida
Difference between std::resize(n) and std::shrink_to_fit in C++?
wish helps you Vectors have two "length" attributes that mean different things: size is the number of usable elements in the vector. It is the number of things you have stored. This is a conceptual length. capacity is how many elements would fit into
TAG :cpp
Date : August 04 2020, 11:00 AM , By : Danillo Moraes
Wildcard for C++ concepts saying "accepting anything for this template argument"
wish helps you You can achieve wildcard behavior by modifying the Pair concept to accept and check a tag type Any.Let's first declare Any as a tag class, no need to implement it.
TAG :cpp
Date : August 04 2020, 11:00 AM , By : sara sara
Which of the objects of the class A would be created first in this code snippet?
hope this fix your issue Objects are created in the order in which they are declared. The comma operator doesn't change that.Doing
TAG :cpp
Date : August 04 2020, 08:00 AM , By : user6110939
Floating point math accuracy, c++ vs fortran
it helps some times Although the variables in your FORTRAN function are defined as double-precision (8 bytes), the constants you have specified are default (single-precision, 4-byte) values.According to this discussion, that means the arithmetic is p
TAG :cpp
Date : August 04 2020, 08:00 AM , By : Pedro
C++ initialize objects with packed array of integers
I think the issue was by ths following , First, in your existing constructor, the char myArr[MYNUM] parameter is the same as passing char myArr[] which is the same as char *myArr. IOW, the constructor takes a simple pointer as input, so it does not a
TAG :cpp
Date : August 04 2020, 07:00 AM , By : snehitha
Picking a constructor to call
this will help Consider the following code , Starting in C++17
TAG :cpp
Date : August 04 2020, 07:00 AM , By : McGlock
using function call in constructor gives different result c++
this one helps. The order of evaluation of function arguments is unspecified; the second piece of code may evaluate parseExpressionTerm() before _currentToken.getVal(), and this is what's happening. If evaluation order matters, you need to take care
TAG :cpp
Date : August 04 2020, 05:00 AM , By : KingForm
Using strcpy to copy elements of an char array to another array
it should still fix some issue First of all why you use char * and strcpy if you tagged you question c++? Its better to use std::string to keep strings and probably std::vector or std::array for arrays. Also, you probably should consider using std::u
TAG :cpp
Date : August 04 2020, 05:00 AM , By : Zedda
Templated Constructor Specialization
I wish this help you How can one specialize a templated constructor? , You can always overload instead:
TAG :cpp
Date : August 04 2020, 04:00 AM , By : baqar hussain
Struggling to convert an integer into a linked list. Not sure what I'm doing wrong here
it fixes the issue Your code loses the head of the list because it is stored in ptr which is changed on each insertion.You can append a node to a singly-linked list in a more efficient manner:
TAG :cpp
Date : August 04 2020, 02:00 AM , By : Cody Murray
C++: Is it better to store a console output in a macro?
I hope this helps . "Better" is a really vague term, it really depends on what you are trying to achieve.Every implementation decision has its pros and cons, so it is really up to the single project.
TAG :cpp
Date : August 03 2020, 10:00 PM , By : Y.hadj.younes
C++ - Exception in Constructor
I hope this helps . I have a problem. I must throw an exception in the constructor One() but do not know how do I suppose to catch it. Can someone suggest something? I have tried this method: Throwing exceptions from constructors , What happens if a
TAG :cpp
Date : August 03 2020, 10:00 PM , By : Eden Anbinder
AVX: matrix dot vector, but ignore diagonal
I hope this helps you . If the FP rounding error isn't a problem, you can of course just subtract vec[i] * matrow[i] from that dot product, after the loop. But that fails if it results in a NaN or Inf, or a huge number that results in huge rounding e
TAG :cpp
Date : August 03 2020, 09:00 PM , By : Bill Hung
Pointer To Pointer passed by reference
I hope this helps you . Converting a comment to an answer.Don't let the "pointer" part confuse you. To pass any type T by reference, write the function to take T. For a float** that means float**.
TAG :cpp
Date : August 03 2020, 08:00 PM , By : DJenksdaCoder
Why is this operator< overload function invisible to STL algorithms?
wish of those help To be found by ADL, you have to put your operator in the same namespace as the class:
TAG :cpp
Date : August 03 2020, 07:00 PM , By : Ank
What is the correct algorithm to perform double-float division?
hope this fix your issue Reviewing the Pseudocode Algorithm as written in the book appears to support the C++ implementation of this algorithm, although my unfamiliarity with Cg means I can't prove that that implementation is correct for Cg.
TAG :cpp
Date : August 03 2020, 07:00 PM , By : Mike Cristancho
In the case of using a std::unique_ptr to automatically deallocate memory upon exiting a scoped block, why not just use
To fix this issue While this is not a terrible useful example per-se, it becomes with some slight variations. Polymorphism
TAG :cpp
Date : August 03 2020, 05:00 PM , By : Mattcoop777
C++: Iterating over a string vector and using the index for putenv
wish help you to fix your issue You're mixing C and C++ stuff. Your vector contains C++ strings, std::string. putenv is an "old" function expecting a pointer to a char buffer, i.e. a C-string.
TAG :cpp
Date : August 03 2020, 04:00 PM , By : user6111286
OpenCL Matrix Multiplication Using std::vector
around this issue I am trying to use OpenCl to preform a vector multiplication, while the code itself seems to work the result returned is either garbage or zeros. From what I can tell it appears that it either the kernel is not receiving the correct
TAG :cpp
Date : August 03 2020, 04:00 PM , By : vadim
template template parameter deduction: three different compilers three different behaviors
This might help you This is CWG 150, which was resolved by DR P0522, which is in C++17.Note that g++ rejects the program (both calls to f) in C++14 mode (-std=c++14, etc).
TAG :cpp
Date : August 03 2020, 03:00 PM , By : Zarin Miah
C++ pull a card from deck
seems to work fine Your calls to rankCard() and suitCard() always return 0.That 0 value is what's passed to cout in your main function.
TAG :cpp
Date : August 03 2020, 03:00 PM , By : Wombley Huxley
File reading with and without new line
I wish this help you The C++ library provides you with a handy getline function. Here is a minimal example from cplusplus.com
TAG :cpp
Date : August 03 2020, 01:00 PM , By : Boontje
store strings in stable memory in c++
will help you My answer from a similar question: Any way to update pointer/reference value when vector changes capability?If you store objects in your vector as std::unique_ptr or std::shared_ptr, you can get an observing pointer to the underlying ob
TAG :cpp
Date : August 03 2020, 06:00 AM , By : c_bit17
Why is static_cast used in QT's official document
fixed the issue. Will look into that further It is perfectly alright to use static_cast if you are absolutely certain that the appropriate dynamic_cast would succeed. Using static_cast is faster than dynamic_cast since it involves no runtime checks.
TAG :cpp
Date : August 03 2020, 06:00 AM , By : Julio Morris
iterator .end() from std::list returns "0xcdcdcdcdcdcdcdcd" but .begin() as expected
Does that help The iterator returned by .end() is one past the end of the collection. You should never dereference it. You should normally compare against it, and when something else compares equal to it, that other iterator is no longer valid, and c
TAG :cpp
Date : August 03 2020, 05:00 AM , By : codex
Is std::sqrt the same as sqrt in C++
seems to work fine I doesn't look like the same formula as in the A = sum(B*C)/sum(B) you're using C column which is not existent in your first formula D = (sum_B / double(E))*std::sqrt(E)As for your primary question "sqrt" is simply an acronym of "s
TAG :cpp
Date : August 03 2020, 04:00 AM , By : Merosian
Iterate through std::initializer_list
Hope that helps sum with std::initializer_list might be done the following way in C++11:
TAG :cpp
Date : August 03 2020, 03:00 AM , By : Caroline Vroom
Codeblocks c++ code doesn't run in VS 19 (vector subscript out of range)
To fix the issue you can do You're bound checking your vector accesses too late.Because of short-circuit evaluation, (distanceTraversed + tank) > stations[i] i< stations.size() doesn't work the way you think it does, 1st you access the array, and on
TAG :cpp
Date : August 03 2020, 02:00 AM , By : amm
Why erase on std::vector promote iterator
To fix this issue vector's erase function returns an iterator that references the first element after the erased elements. Use the return value by changing
TAG :cpp
Date : August 02 2020, 10:00 PM , By : kdunne
how to destroy an object in C++
Any of those help Use smart pointers to create and delete your objects. The easiest one to use is unique_ptr.Your code should like something like this:
TAG :cpp
Date : August 02 2020, 09:00 PM , By : James Larracoechea
How to create Visual Studio 2015 solution from CMake
I wish this helpful for you Visual Studio is a multi-configuration generator, so you can easily switch between Release and Debug. No need to use a CUSTOM_BUILD_TYPE argument. In addition, CMake provides generator expressions (e.g. $) for setting conf
TAG :cpp
Date : August 02 2020, 04:00 PM , By : aureliajulianna
Using concepts for checking if a type T has a field F
Hope this helps Checking if a parameter provided has a field F can be easily achieved with a requires constraint on the function itself:
TAG :cpp
Date : August 02 2020, 03:00 PM , By : Danny74
constructor giving error: no matching function for call to
Any of those help If you don't explicitly call a constructor of a base class it's default constructor will be called. But JMTDSavingsAccount has no default constructor, so you need to explicitly call it's constructor:
TAG :cpp
Date : August 02 2020, 10:00 AM , By : marciot
search top n% of a vector member C++
To fix this issue It looks like you want partial_sort. It will sort 2% of your items, and the remaining 98% will be in essentially random order.
TAG :cpp
Date : August 02 2020, 09:00 AM , By : Ophir Maor
Is this reinterpret_cast problematic in principle, and/or in practice?
fixed the issue. Will look into that further Take the following: , Does this program have undefined behaviour?
TAG :cpp
Date : August 02 2020, 08:00 AM , By : Alexander Litvinov
What is the following error doing? I do not see any error with the bounds
hop of those help? sizeof(letters) is only right if letters is a plain array of char, which it cannot be because plain arrays don't have at member function. at member functions in the C++ standard library compare with size() for random-access sequenc
TAG :cpp
Date : August 02 2020, 05:00 AM , By : Sam
Two index's of an array have same memory adress
it should still fix some issue I was working on a project to practice movement through an array and I found a very weird occurrence. While messing around, I discovered that when I moved my player to the edge of the array, it showed up on the edge and
TAG :cpp
Date : August 02 2020, 02:00 AM , By : Yevish
how do i avoid integer division in c++?
This might help you This is my code: , Your first job is to replace
TAG :cpp
Date : August 02 2020, 01:00 AM , By : josmassive
Setting value to enum
this one helps. I want to assign "paramControlHeight" which is inside my enum a different value. So, for example, it starts out as 40, but I would like to change it to 80 later on
TAG :cpp
Date : August 02 2020, 01:00 AM , By : mada0304
Properties of a pointer to a zero length array
it should still fix some issue Per recent CWG reflector discussion as a result of editorial issue 3178, new int[0] produces what is currently called a "past-the-end" pointer value.It follows that a cannot be null, and a + 1 is undefined by [expr.add]
TAG :cpp
Date : August 01 2020, 11:00 PM , By : Tiff
Why the output is different how ever the formula is the same?
I wish this help you The C++ standard permits an implementation to evaluate floating-point expressions with more precision than is required by the nominal format. For example, float expressions may be evaluated as if they were double or more, and dou
TAG :cpp
Date : August 01 2020, 10:00 PM , By : dole
Restarting from the beginning using do while loops
wish helps you I am trying to create a small block of code where it just runs through using functions. Im trying to figure out how to create a function at the end to where it asks the user if they want to continue. if they type Y then it starts back
TAG :cpp
Date : August 01 2020, 09:00 PM , By : mkapi
Error: invalid initialization of reference of type
Any of those help So I have classes Sensor, Car, and Agency where class Agency takes in class Car, and class Car takes in class Sensor. In my source file for class Agency I have an error for my operator[]`\ function and that says , The problem is you
TAG :cpp
Date : August 01 2020, 09:00 PM , By : Orhan Çelik
how to avoid to use memcpy to create a string
should help you out Use an std::string_view to avoid copying the string.
TAG :cpp
Date : August 01 2020, 03:00 PM , By : NewInNewHamp
Copying the vector elements into std::array
This might help you I have a vector of elements of type uint8 which I am copying into one std::array. After some operations again I need to copy the elements from std::array to a vector.Please find the code below , You could copy by size of vector.
TAG :cpp
Date : August 01 2020, 02:00 PM , By : gnad
Is there any class pointers in Perl in order to access member variables and functions?
To fix the issue you can do I'm looking to build a Node class in Perl (using the keyword 'package'), but I'm not sure how to create a pointer to class variable like in C++.
TAG :cpp
Date : August 01 2020, 01:00 PM , By : Combobreaker
Why the static variable is not set to 1000
this one helps. With each new Container object created, you increment the Container::GLOBALID number by 1. This is due to the fact that you call MyID = GLOBALID++ inside the Container constructor, which returns the GLOBALID and then increments it, se
TAG :cpp
Date : August 01 2020, 11:00 AM , By : Raj Zala
Why can't a destructor have reference qualifiers?
I hope this helps you . First, there must be only one destructor per class. Allowing ref-qualifiers on the destructor would make it possible to overload the destructor.Another possible reason is to be consistent with const and volatile qualifiers:
TAG :cpp
Date : August 01 2020, 10:00 AM , By : Silas
How to print binary tree in horizontal way?
Hope this helps You could create a hash map to indicate the level of the tree you are at in association with the values at that level of the tree. For example:
TAG :cpp
Date : August 01 2020, 07:00 AM , By : SEGAProgrammer
Comparison behavior of ' <' operator
around this issue Since char[100] doesn't have an operator
TAG :cpp
Date : August 01 2020, 07:00 AM , By : Sim Xing
Constructors in C++ Language
may help you . In your main method, you create a Rectangle a;, which calls your default constructor Rectangle(). Then in the next line you create a temporary element with Rectangle(2,3);, which calls your initialization constructor Rectangle(int init
TAG :cpp
Date : August 01 2020, 07:00 AM , By : chintu
Why displayed value of b , c and y is different from my trace?
it should still fix some issue cppreference.com - Logical operators:
TAG :cpp
Date : August 01 2020, 05:00 AM , By : Ebou Faye
Undefined reference to `fftw_init_threads' while installing pHash library
I wish this helpful for you From the documentation:
TAG :cpp
Date : August 01 2020, 05:00 AM , By : Istihaq Mubarak
Reading remapped hdd sectors
will be helpful for those in need The physical sectors on the HDD gets remapped if there is non-recoverable ECC error.There is no need to examine the unused spare sectors, since they will be empty and the ones which are used are mapped instead of the
TAG :cpp
Date : August 01 2020, 03:00 AM , By : Dee
why the result is 1?
fixed the issue. Will look into that further , This line creates a vector with size 1, with a value of zero
TAG :cpp
Date : August 01 2020, 12:00 AM , By : Julio Cesar Padilla
YouCompleteMe conf file for inspecting libraries header files without reporting the library errors
will help you I finally realized this functionality needs to be supported by compilers.The solution is to use '-isystemMY_EXTERNAL_LIBRARY' instead of '-IMYEXTERNAL_LIBRARY' in my .ycm_extra_conf.py
TAG :cpp
Date : July 31 2020, 09:00 PM , By : Joy Mazumdar
How CMake finds packages
With these it helps The CMP0074 policy's description tells:
TAG :cpp
Date : July 31 2020, 08:00 PM , By : Robin
Get UTC epoch time till start of current year in C++
I wish this helpful for you I just realized that getEpochTimeFromSOY() is intended to just return the time_t associated with the first of the year, and not do the subtraction between the current time and the first of the year. Here's that:
TAG :cpp
Date : July 31 2020, 07:00 PM , By : Andy
access to iterator in lambda function of an algorithm cause me segmentation fault
wish of those help Honestly, your approach looks rather complicated to me. Most of its complexity is due to the fact that you have rows in your code but they are present only implicitly. Making stuff explicit in code not only helps to increase readab
TAG :cpp
Date : July 31 2020, 07:00 PM , By : Susana Diaz

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