c++ - Opening excel files with system( ) on mac? -


i trying c++ program open existing excel spreadsheet (along bunch of applications), keeps returning error file not exist. using following code:

int main(){     system("open ~/path/file");     //--open applications using same command--// }

the file there , command works open applications, i'm not sure doing wrong.

thanks in advance!!

very probably, system /bin/sh -which definition used system(3)- not expand ~.

you might try like

 char cmd[256];  snprintf(cmd, sizeof(cmd), "open %s/path/file", getenv("home"));  if (0 != system(cmd))     { fprintf(stderr, "%s failed\n", cmd); exit(exit_failure); };

since interactive shells expand ~ $home , home environment variable.

(with c++, use std::string operations instead of snprintf)

my snprintf + system trick not @ failproof. if $home contains spaces or bizarre characters ; or ', wont work. , snprintf might fail (e.g. because $home huge).

of course, you'll better test before getenv("home") not null. might use getpwuid(3) getuid(2) if getenv("home") fails returning null.

on linux want xdg-open instead of open.


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