Eclipse cannot read file when using freopen or fopen CPP

Question

I try to use freopen ("inputString.txt","r",stdin); to send input to standard input.If I run program in eclipse the output is xxx but if I run program directly (run *.exe after compile without eclipse) the output is goodxxx

The text file is in the same directory of *.exe in eclipse project. How can I fix this. Here is some of my sourcecode.

 int main() {
int debug = 1,width,height;
char s[1000];
freopen ("inputString.txt","r",stdin);

s[0]='x';
scanf("%s",s);
printf("%s",s);
printf("xxx")for(;;);;

return 0;}

inputString.txt contain

good

If this is C++, why not use a `istream`? – Richard J. Ross III May 06 '12 at 03:56 — Richard J. Ross III, May 06 '12 at 03:56

score 2 · Answer 1 · edited May 23 '17 at 12:29

2

Check the current directory in your launch configuration, make sure it's what you expect. You can also use this to get and print the current directory from within your program to see where you are.

edited May 23 '17 at 12:29

Community

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1

answered May 04 '12 at 01:54

Francis Upton IV

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My current directory is true but it still wrong if run via eclipse – UmAnusorn May 06 '12 at 12:11

UmAnusorn · Accepted Answer · 2015-10-21T09:41:26.097

0

Just put file in the root directory of the project.

edited Oct 21 '15 at 09:41

answered May 07 '12 at 05:51

UmAnusorn

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score 0 · Answer 3 · answered Dec 01 '20 at 21:06

test
|___Binaries
|___Included
|___src
    |__test.cpp
    |__input.txt
|___Debug
|___Release

If this is your Eclipse C++ project structure, then to access contents of file input.txt in test.cpp you need to write

freopen("src/input.txt", "r", stdin);

"test" is the root dir

Eclipse cannot read file when using freopen or fopen CPP

3 Answers3