Change path symbols \ to /

Question

I have a string path to my file that I want to execute. It is for example:

E:\folderA\folderB\myfile.exe

If I write this path and I try to execute file there it says that file doesn't exist.

When I write it like that. Then it works.

  E:/folderA/folderB/myFile.exe

How do I change \ to / ?

You need to use `escaped backslashes` in C(++), `E:\\folderA\\folderB\\myfile.exe` — Mario Werner, Jan 05 '16 at 15:03
`GetTempPathA(MAX_PATH, tempPath); string fullPath = (string)tempPath + "/" + data.fileName;` — De Kirvis, Jan 05 '16 at 15:16
You might want to take a look at [Boost.Filesystem](http://www.boost.org/doc/libs/release/libs/filesystem/doc/index.htm)... — DevSolar, Jan 05 '16 at 15:18

mksteve · Answer 1 · 2016-01-05T15:10:03.350

2

Windows is quirky about whether Unix (/) or windows (\) separators are accepted.

You also need to escape '\' in a string

const char * bad = "C:\hello\world.txt"
const char *good = "C:\\hello\\world.txt"

std::string::replace allows substitution.

edited Jan 05 '16 at 15:10

answered Jan 05 '16 at 15:09

mksteve

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A `char*` to a constant c string. That is bad form. You should use a `std::string` – NathanOliver Jan 05 '16 at 15:09
Okay, how replace function should look, because `replace(fullPath.begin(), fullPath.end(), '\', '\\');` doesn't work. – De Kirvis Jan 05 '16 at 15:18
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@DeKirvis You didn't get what an escaped character means, did you? – πάντα ῥεῖ Jan 05 '16 at 15:21
@DeKirvis `'\'` doesn't form a valid character literal. – πάντα ῥεῖ Jan 05 '16 at 15:24

score 0 · Answer 2 · answered Jan 05 '16 at 15:24

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GetTempPathA(MAX_PATH, tempPath);
string fullPath = (string)tempPath + "/" + data.fileName;

std::replace(fullPath.begin(), fullPath.end(), '\\', '/');

answered Jan 05 '16 at 15:24

fredoverflow

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score 0 · Accepted Answer · answered Jan 05 '16 at 15:27

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You may just use this:

std::string str=R"(E:\folderA\folderB\myfile.exe)";

and everything will be fine

Live Demo

answered Jan 05 '16 at 15:27

Humam Helfawi

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Change path symbols \ to /

3 Answers3