···

       
26
       
 
       


     

       
27
       
 
       
// aborts when false, printing the failed expression

     

       
28
       
 
       
#define ASSERT(expr) ((expr) ? (void) 0 : assert_failure(#expr))

     

       
29
       
-
       
// aborts when returns non-zero, printing the failed expression and errno

     

       
30
       
-
       
#define MUSTSUCCEED(expr) ((expr) ? print_errno_and_die(#expr) : (void) 0)

     

       
31
       
 
       


     

       
32
       
 
       
extern char **environ;

     

       
33
       
 
       


     
···

       
44
       
 
       


     

       
45
       
 
       
static noreturn void assert_failure(const char *assertion) {

     

       
46
       
 
       
    fprintf(stderr, "Assertion `%s` in NixOS's wrapper.c failed.\n", assertion);

     

       
47
       
-
       
    fflush(stderr);

     

       
48
       
-
       
    abort();

     

       
49
       
-
       
}

     

       
50
       
-
       


     

       
51
       
-
       
static noreturn void print_errno_and_die(const char *assertion) {

     

       
52
       
-
       
    fprintf(stderr, "Call `%s` in NixOS's wrapper.c failed: %s\n", assertion, strerror(errno));

     

       
53
       
 
       
    fflush(stderr);

     

       
54
       
 
       
    abort();

     

       
55
       
 
       
}

     

···

       
26
       
 
       


     

       
27
       
 
       
// aborts when false, printing the failed expression

     

       
28
       
 
       
#define ASSERT(expr) ((expr) ? (void) 0 : assert_failure(#expr))

     

       
0
       
 
       

     

       
0
       
 
       

     

       
29
       
 
       


     

       
30
       
 
       
extern char **environ;

     

       
31
       
 
       


     
···

       
42
       
 
       


     

       
43
       
 
       
static noreturn void assert_failure(const char *assertion) {

     

       
44
       
 
       
    fprintf(stderr, "Assertion `%s` in NixOS's wrapper.c failed.\n", assertion);

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
45
       
 
       
    fflush(stderr);

     

       
46
       
 
       
    abort();

     

       
47
       
 
       
}