CPP intresting thing with conditionsl statement [closed] - c++

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if(cout<<"h"){}
this gives me an output
h
Any idea why, I have tried many variations of it and it still works.

That's because the if statement needs to evaluate the condition you give into it, plus, streams are implicitly convertible to bool.

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if/else statement stays in the first condition [closed]

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No matter the weight I enter, the output is always $3.50; however, it does not make any mistake on java. Can someone tell me what's wrong with it? Thank you.
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It's because the first condition weight > 0 is always fulfiled.

how to add number to the end of the string in c++? [closed]

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I did various implementations but they take a long time
Can anyone give us the best implementation?
For example, add a ten-digit number to the end of a string
I did not find a good answer on the Internet
#include <iostream>
std::string a="string";
long n=1703705707;
a.append(std::to_string(n)); //becomes "string1703705707"

Clang-Tidy: check number of lines in a function [closed]

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Can you please help me with how to check CPP files in a project for functions exceeding 'n' number of lines using Clang-Tidy?
You can use the readability-function-size check and set the LineThreshold parameter to your n value.

c++ evaluating string expression with variables [closed]

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I want to do evaluate for example something like:
int x=10, y=2;
x=eval('x+(y*10)');
i can give you the code which i made, but would like you to try yourself. Here are the steps :
replace all the unknowns with their values
convert the expression to postfix
try to evaluate postfix expression using stacks

What's the regular expression for regular expressions? [closed]

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Ok, so it's late on a Wed night and this is for no good reason. But I'd like to see one in any dialect, if it exists, just to be impressed.
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