Strange Cout

[JosepH2OW]

cout << "INSERISCI STRING1: ";
cin >> string1;

cout <<"INSERISCI STRING2: ";
cin >> string2;

if i write in this way the output is

inserisci strin1:""

inserisci string2:"

why clion put the space in the new line and not in the current line as i write?

[seeplus]

I'm not sure what you're asking. Consider:

#include <string>
#include <iostream>

using namespace std;

int main()
{
	string string1, string2;

	cout << "INSERISCI STRING1: ";
	cin >> string1;

	cout << "INSERISCI STRING2: ";
	cin >> string2;
}

which gives:

INSERISCI STRING1: str1
INSERISCI STRING2: str2

Note that the cin >> only completes when a <CR> is entered following text. If just a <CR> is entered then a blank line is shown but input is still required until some text has been entered followed by a <CR>.

[JosepH2OW]

int main() {
    char * ret_accoda_stringhe;
    char string1[30+1],string2[30+1];

    cout <<"INSERISCI STRING1: ";
    cin >> string1;

    cout <<"INSERISCI STRING2: ";
    cin >> string2;

"C:\Users\Giuseppe\Desktop\SECONDO SEMESTRE\ALGORITMI&CALCOLATORI\progetti algoritmi\Esercitazioni\cmake-build-debug\Es2_2.exe"
INSERISCI STRING1:ciao 
 INSERISCI STRING2:mamma

the space after ':' isn't written in the output, but in the cout i write : ";
there is no space between : and ciao, but the space there is at the beginning of the new line

[seeplus]

Well on my Windows system, using:

include <iostream>
using namespace std;

int main() {
	char string1[30 + 1], string2[30 + 1];

	cout << "INSERISCI STRING1: ";
	cin >> string1;

	cout << "INSERISCI STRING2: ";
	cin >> string2;
}

I get:

INSERISCI STRING1: ciac
INSERISCI STRING2: mamma

What OS are you using? What compiler/version?

It looks like there's no sync between input/output, but the input/output streams have been tied for a long time in C++.

What happens if you use:

#include <iostream>
using namespace std;

int main() {
	char string1[30 + 1], string2[30 + 1];

	cout << "INSERISCI STRING1: " << flush;
	cin >> string1;

	cout << "INSERISCI STRING2: " << flush;
	cin >> string2;
}

[JosepH2OW]

i use windows 10 pro, clion 2020.3

i use your code, but i have the same result :(

[deleted account xyzzy]

You should try a different compiler. Code::Blocks or Visual Studio are good ones that are free and work well with Windows.

[Ganado]

Does your CLion use MinGW? If so, what version? You most likely can continue to use CLion as an IDE, but try to hook it up to a different compiler instead.

[JosepH2OW]

sorry MinGWw64 v6.0

[Ganado]

Just doing a cursory search, it looks like there are some similar issues that people have faced when using MinGW-w64,
https://youtrack.jetbrains.com/issue/CPP-2580
https://youtrack.jetbrains.com/issue/CPP-11382

Apparently one of the workarounds is,

try doing the following: in Registry (Help | Find Action..., type Registry there) disable the run.processes.with.pty option and restart CLion. Does that help?

According to the response in CPP-12752 disabling PTY (without CLion restart, since the run.processes.with.pty option is not saved after CLion's restart - CPP-8395) helps.

You could also try running the program in cmd instead of whatever window CLion shows.

[JosepH2OW]

Thanks @Ganado you got it!