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  1. #include <stdio.h>
  2. #include <setjmp.h>
  3.  
  4. struct jmp_buf_struct
  5. {
  6.   jmp_buf jb;
  7.   void* exc_ptr;
  8. };
  9.  
  10. void may_throw(jmp_buf jb)
  11. {
  12.   struct jmp_buf_struct* jbs_ptr = (struct jmp_buf_struct*)jb;
  13.   jbs_ptr->exc_ptr = "Exception message!";
  14.   longjmp(jb, 1);
  15. }
  16.  
  17. int main()
  18. {
  19.   struct jmp_buf_struct jbs;
  20.   if (setjmp(jbs.jb))
  21.   {
  22.     printf("Threw %p = \"%s\".", jbs.exc_ptr, (char*)jbs.exc_ptr);
  23.   }
  24.   else
  25.   {
  26.     may_throw(jbs.jb);
  27.     puts("Didn't throw.");
  28.   }
  29.   return 0;
  30. }
  31.  
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
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Standard input is empty
stdout
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Threw 0x55638ebc78c4 = "Exception message!".
https://ideone.com/WtQGzT
language:
C99 (gcc 8.3)
created:
5 years ago
visibility:
secret

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