string-literals Questions
2
Solved
The CTRE library is able to parse and validate regular expressions at compile time using syntax like ctre::match<"REGEX">(text_to_search). I know this syntax is only supported...
Ecclesiolatry asked 17/6, 2021 at 18:12
6
Solved
What is the difference between backticks (``) & double quotes ("") in golang?
Ramiform asked 24/10, 2017 at 18:12
10
Every one of us has (probably) had the childhood dream of writing:
switch(my_std_string) {
case "foo": do_stuff(); break;
case "bar": do_other_stuff(); break;
default: just_give...
Galasyn asked 26/12, 2016 at 23:25
3
Solved
I was reading a Postgres/PostGIS statement like this:
SELECT ST_AsBinary(
ST_GeomFromWKB(
E'\\001\\001\\000\\000\\000\\321\\256B\\312O\\304Q\\300\\347\\030\\220\\275\\336%E@',
4326
)
);
The a...
Antwanantwerp asked 16/1, 2016 at 3:17
2
Solved
Is there a way to add a literal field at the end of a Google Sheets QUERY function similar to what you can do in SQL?
e.g. =QUERY(A:C,"SELECT A, B, C, D AS 'CURRENT DATA'",0)
Thanks,
Stefan
Dijon asked 4/8, 2016 at 14:45
4
In Typescript, suppose I want to call a function with following signature-
function foo(param: "TRUE"|"FALSE"|"NONE")
How can I do something like-
var str = runtimeString()
if(str === "TRUE" | ...
Sawn asked 22/7, 2016 at 11:10
5
Solved
On a microcontroller, in order to avoid loading settings from a previous firmware build, I also store the compilation time, which is checked at loading.
The microcontroller project is build with 'm...
Acanthopterygian asked 15/1 at 12:45
7
Solved
In the quest for localization I need to find all the string literals littered amongst our source code. I was looking for a way to script this into a post-modification source repository check. (I.E....
Hexamerous asked 2/10, 2008 at 20:23
3
Solved
I'm confused about the type of a string literal. Is it a const char * or a const char?
Tympanist asked 20/9, 2012 at 17:45
2
Solved
I've been wondering, how long does a string constant live in C++. For example, if I create some const char *str = "something" inside a function, would it be safe to return the value of str?
I wrot...
Angellaangelle asked 15/7, 2014 at 13:49
5
Solved
Consider this code:
const char* someFun() {
// ... some stuff
return "Some text!!"
}
int main()
{
{ // Block: A
const char* retStr = someFun();
// use retStr
}
}
In the function someFun()...
Grubb asked 5/4, 2010 at 17:32
20
Solved
I have the above-mentioned error in s1="some very long string............"
Does anyone know what I am doing wrong?
Masseter asked 24/8, 2010 at 23:4
7
Solved
Is it possible to create a constructor (or function signature, for that matter) that only accepts a string literal, but not an e.g. char const *?
Is it possible to have two overloads that can dist...
Rumelia asked 11/1, 2010 at 11:3
5
Solved
I wanted to compare a string to a string literal; something like this:
if (string == "add")
Do I have to declare "add" as a string or is it possible to compare in a similar way...
Countercurrent asked 3/6, 2011 at 3:10
3
Solved
There is a very convenient feature introduced in C++11 called raw string literals, which are strings with no escape characters. And instead of writing this:
regex mask("\\t[0-9]+\\.[0-9]+\\t\\\\S...
Outfielder asked 29/9, 2013 at 8:34
2
Solved
disp(['counter ' num2str(blk) (here I need a tab!!!) 'adc ' num2str(adc_nr)])
Watthour asked 8/3, 2011 at 12:6
1
Solved
I read that string literals are always stored in read only memory and it makes sense as to why.
However if I initialize a character array using a string literal, it still stores the string literal ...
Tenorrhaphy asked 12/6, 2023 at 12:1
3
Solved
I think i quite understand how to use the keyword constexpr for simple variable types, but i'm confused when it comes to pointers to values.
I would like to declare a constexpr C string literal, w...
Nikolenikoletta asked 7/9, 2017 at 15:36
5
C++03 5.1 Primary expressions §2 says:
A literal is a primary expression. Its type depends on its form (2.13). A string literal is an lvalue; all other literals are rvalues.
Similarly, C99 6.5...
Doti asked 4/4, 2012 at 3:23
5
Solved
I am trying to figure out how to write a macro that will pass both a string literal representation of a variable name along with the variable itself into a function.
For example given the followin...
Disastrous asked 8/5, 2012 at 22:7
15
Solved
When should I use single quotes and double quotes in C or C++ programming?
Unrefined asked 10/9, 2010 at 9:43
2
I'm wondering if it's possible in C++ to declare a function parameter that must be a string literal? My goal is to receive an object that I can keep only the pointer to and know it won't be free()e...
Infinitive asked 9/9, 2021 at 20:20
8
Solved
I have a table test(id,name).
I need to insert values like: user's log, 'my user', customer's.
insert into test values (1,'user's log');
insert into test values (2,''my users'');
insert into t...
Caressa asked 7/9, 2012 at 11:11
5
I was reading the MSDN article of the boolean structure, when I saw that a boolean has two fields: TrueString and FalseString. These respectively return "True" and "False".
After some searching, t...
Sapp asked 3/7, 2013 at 12:3
4
Solved
What is the meaning and difference between these queries?
SELECT U'String' FROM dual;
and
SELECT N'String' FROM dual;
Gavrah asked 3/1, 2018 at 11:25
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