sysrap/tests/getenvTest.cc

0001 // name=getenvTest ; gcc $name.cc -lstdc++ -std=c++11 -o /tmp/$name && /tmp/$name
0002 #include <cstdlib>
0003 #include <iostream>
0004
0005 int main(int argc, char** argv)
0006 {
0007     const char* key = argc > 1 ? argv[1] : "HOME" ;
0008     char* val = getenv(key) ;
0009     printf("%s\n",val?val:"-");
0010     return 0 ;
0011 }