gdb/testsuite/gdb.base/run.c

   1 /*
   2  *      This simple classical example of recursion is useful for
   3  *      testing stack backtraces and such.
   4  */
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8
   9 #include "../lib/unbuffer_output.c"
  10
  11 int factorial (int);
  12
  13 int
  14 main (int argc, char **argv, char **envp)
  15 {
  16   gdb_unbuffer_output ();
  17
  18 #ifdef FAKEARGV
  19     printf ("%d\n", factorial (1)); /* commands.exp: hw local_var out of scope */
  20 #else
  21     if (argc != 2) {
  22         printf ("usage:  factorial <number>\n");
  23         return 1;
  24     } else {
  25         printf ("%d\n", factorial (atoi (argv[1])));
  26     }
  27 #endif
  28     return 0;
  29 }
  30
  31 int factorial (int value)
  32 {
  33     int  local_var;
  34
  35     if (value > 1) {
  36         value *= factorial (value - 1);
  37     }
  38     local_var = value;
  39     return (value);
  40 } /* commands.exp: local_var out of scope  */