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  1. #include <signal.h>
  2. #include <stdio.h>
  3. #include <stdlib.h>
  4. #include <inttypes.h>
  5.  
  6. static void catch_function(int signal) {
  7.     int foo;
  8.     printf("Local variable address: %"PRIxPTR"\n", (intptr_t)&foo);
  9. }
  10.  
  11. int main(void) {
  12.     int bar;
  13.     if (signal(SIGINT, catch_function) == SIG_ERR) {
  14.         fputs("An error occurred while setting a signal handler.\n", stderr);
  15.         return EXIT_FAILURE;
  16.     }
  17.     printf("Local variable address: %"PRIxPTR"\n", (intptr_t)&bar);
  18.     puts("Raising the interactive attention signal.");
  19.     if (raise(SIGINT) != 0) {
  20.         fputs("Error raising the signal.\n", stderr);
  21.         return EXIT_FAILURE;
  22.     }
  23.     puts("Exiting.");
  24.     return 0;
  25. }
Success #stdin #stdout 0.01s 1720KB
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stdin
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Standard input is empty
stdout
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Local variable address: bf9d47c4
Raising the interactive attention signal.
Local variable address: bf9d4498
Exiting.
https://ideone.com/9RTQo
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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