Article View: pl.comp.programming
Article #216882Re: najprosze możliwe pytanie z C++
From: M.M.
Date: Wed, 15 Apr 2020 14:24
Date: Wed, 15 Apr 2020 14:24
44 lines
2648 bytes
2648 bytes
On Tuesday, April 14, 2020 at 10:30:41 AM UTC+2, RM wrote:
> W dniu 14.04.2020 o 09:59, Emru pisze:
> > W dniu Tue, 14 Apr 2020 09:49:50 +0200, użytkownik RM napisał:
> >
> >> żaden operator "+=" nie pasuje do tych argumentów operacji -- typy
> >> operandów: const std::__cxx11::string += const char [70]
> >
> > spróbuj może "Invalid usage..." przypisać najpierw do jakiegoś stringa
> >
> > std::string tmp = "Invalid usage. Result directory must be different from
> > application directory.\n";
> >
> Znalazłem i poprawiłem błąd. errors było polem w klasie obfuscator a
> całość była robiona w metodzie
> obfuscator::make_result_dir() const
> i właśnie to const przeszkadzało.
Nie rozumiem.
U mnie nie ma problemu:
[[[[[[
#:~/test_str$ cat > main.cpp
#include <string>
#include <iostream>
int main() {
std::string str;
str += "test\n";
std::cout << str;
return 0;
}
#:~/test_str$ g++ main.cpp -o test_str
#:~/test_str$ ls -la
razem 28
drwxr-xr-x 2 m m 4096 kwi 15 16:21 .
drwxr-xr-x 22 m m 4096 kwi 15 16:19 ..
-rw-r--r-- 1 m m 132 kwi 15 16:21 main.cpp
-rwxr-xr-x 1 m m 13536 kwi 15 16:21 test_str
#:~/test_str$ ./test_str
test
]]]]]
Pozdrawiam
Technical Details
Message-ID:
<36b77688-e9f3-4b96-b888-e814a94f6ccf@googlegroups.com>Path:
mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!wsisiz.edu.pl!goblin2!goblin.stu.neva.ru!aioe.org!peer02.am4!peer.am4.highwinds-media.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mailReferences:
<r73pv0$3er5h$1@portraits.wsisiz.edu.pl> <r73qhd$95q$1$Emru@news.chmurka.net> <r73sbg$3eues$1@portraits.wsisiz.edu.pl>Show Full Headers
Complete Article Headers
X-Received: by 2002:ac8:4d43:: with SMTP id x3mr21352988qtv.306.1586960641279; Wed, 15 Apr 2020 07:24:01 -0700 (PDT) X-Received: by 2002:a0c:a899:: with SMTP id x25mr5294355qva.232.1586960641101; Wed, 15 Apr 2020 07:24:01 -0700 (PDT) Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!wsisiz.edu.pl!goblin2!goblin.stu.neva.ru!aioe.org!peer02.am4!peer.am4.highwinds-media.com!peer02.iad!feed-me.highwinds-media.com!news.highwinds-media.com!news-out.google.com!nntp.google.com!postnews.google.com!google-groups.googlegroups.com!not-for-mail Newsgroups: pl.comp.programming Date: Wed, 15 Apr 2020 07:24:00 -0700 (PDT) In-Reply-To: <r73sbg$3eues$1@portraits.wsisiz.edu.pl> Complaints-To: groups-abuse@google.com Injection-Info: google-groups.googlegroups.com; posting-host=159.205.32.239; posting-account=xjvq9QoAAAATMPC2X3btlHd_LkaJo_rj NNTP-Posting-Host: 159.205.32.239 References: <r73pv0$3er5h$1@portraits.wsisiz.edu.pl> <r73qhd$95q$1$Emru@news.chmurka.net> <r73sbg$3eues$1@portraits.wsisiz.edu.pl> User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <36b77688-e9f3-4b96-b888-e814a94f6ccf@googlegroups.com> Subject: Re: najprosze możliwe pytanie z C++ From: "M.M." <mmarszik@gmail.com> Injection-Date: Wed, 15 Apr 2020 14:24:01 +0000 X-Received-Bytes: 2674 X-Received-Body-CRC: 2702112173 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit