Question

I use the NetBeans to program C++ , I want to get the current absolute path of the executable file

(~/NetBeansWorkSpace/project_1/dist/Debug/GNU-Linux-x86/executableFileName)

so I use

1, system("pwd")

2,getcwd(buffer,bufferSize)

then click the run button but they all get the wrong path: ~/NetBeansWorkSpace/project_1

Here is the surprise , I run the bash

cd ~/NetBeansWorkSpace/project_1/dist/Debug/GNU-Linux-x86/executableFileName

./executableFileName

I get the right path .

It’s WHY ???

Answer 1

As everyone else has stated, NetBeans is setting the working directory before running your application. If you want to get the working directory of the executable, I believe that the following should work.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char const* *argv) {
    char *resolved = realpath(argv[0], NULL);
    if (resolved != NULL) {
        char *fname = strrchr(resolved, '/');
        if (fname != NULL) {
            fname[1] = '\0';
        }
        printf("absolute path of %s is %s\n", argv[0], resolved);
        free(resolved);
    } else {
        perror("realpath");
    }
    return EXIT_SUCCESS;
}