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Determining 32 vs 64 bit in C++
I'm looking for a way to reliably determine whether C++ code is being compiled in 32 vs 64 bit. We've come up with what we think is a reasonable solution using macros, but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we ...
What does “dereferencing” a pointer mean?
...rested in the pointed-to object's (current) value - I focus below on C and C++.
A pointer scenario
Consider in C, given a pointer such as p below...
const char* p = "abc";
...four bytes with the numerical values used to encode the letters 'a', 'b', 'c', and a 0 byte to denote the end of the tex...
Checking if a folder exists (and creating folders) in Qt, C++
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C++: Rounding up to the nearest multiple of a number
...s? What about negative numbers? The behaviour seems to be undefined in pre-C++11.
– cubuspl42
Aug 18 '15 at 16:28
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Why sizeof int is wrong, while sizeof(int) is right?
...ty of sizeof (int *) + 1. It is (sizeof(int*))+1, not sizeof((int*)(+1)).
C++ has a somewhat similar issue to resolve with function-style cast syntax. You can write int(0) and you can write typedef int *intptr; intptr(0);, but you can't write int*(0). In that case, the resolution is that the "naked...
How to concatenate two strings in C++?
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Since it's C++ why not to use std::string instead of char*?
Concatenation will be trivial:
std::string str = "abc";
str += "another";
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How to remove all the occurrences of a char in c++ string
I am using following:
10 Answers
10
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How to convert std::string to LPCWSTR in C++ (Unicode)
... (Found this question browsing randomly; it's been a long time since I did C++.) So the standard library doesn't have std::string -> std::wstring conversion? That seems weird; is there a good reason?
– Domenic
Jul 29 '09 at 8:41
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Is Java a Compiled or an Interpreted programming language ?
In the past I have used C++ as a programming language. I know that the code written in C++ goes through a compilation process until it becomes object code "machine code".
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What is stack unwinding?
...esources like memory, database connections, open file descriptors, etc. in C++.
Now that allows us to provide exception safety guarantees.
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