fork download
copy 
  1. #include<stdio.h>
  2. #include<stdlib.h>
  3.  
  4.  
  5. int main(int argc, char *argv[])
  6. {
  7.     int i;
  8.     char *p1 = malloc(1024);
  9.     char *p2 = malloc(1024);
  10.  
  11.     fprintf(stderr, "p1 = %p\n", p1);
  12.     fprintf(stderr, "p2 = %p\n", p2);
  13.  
  14.     fprintf(stderr, "line.%d passed\n", __LINE__);
  15.     for (i = 0; i < 2048; i++) {
  16.         p1[i] = 0;
  17.     }
  18.     fprintf(stderr, "line.%d passed\n", __LINE__);
  19.     free(p2);
  20.     fprintf(stderr, "line.%d passed\n", __LINE__);
  21.     free(p1);
  22.     fprintf(stderr, "line.%d passed\n", __LINE__);
  23.  
  24.     return 0;
  25. }
  26.  
Runtime error #stdin #stdout #stderr 0s 3100KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Standard output is empty
stderr
copy 
p1 = 0x90df008
p2 = 0x90df410
line.14 passed
line.18 passed
*** glibc detected *** ./prog: free(): invalid pointer: 0x090df410 ***
======= Backtrace: =========
/lib/i386-linux-gnu/i686/cmov/libc.so.6(+0x6e3f1)[0xb76da3f1]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(+0x6fc58)[0xb76dbc58]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(cfree+0x6d)[0xb76ded0d]
./prog[0x804849c]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0xb7682e46]
./prog[0x8048509]
======= Memory map: ========
08048000-08049000 r-xp 00000000 09:03 141660     /home/CrtF6Z/prog
08049000-0804a000 rw-p 00000000 09:03 141660     /home/CrtF6Z/prog
090df000-09100000 rw-p 00000000 00:00 0          [heap]
b7500000-b7521000 rw-p 00000000 00:00 0 
b7521000-b7600000 ---p 00000000 00:00 0 
b764d000-b7669000 r-xp 00000000 09:03 92165      /lib/i386-linux-gnu/libgcc_s.so.1
b7669000-b766a000 rw-p 0001b000 09:03 92165      /lib/i386-linux-gnu/libgcc_s.so.1
b766a000-b766c000 rw-p 00000000 00:00 0 
b766c000-b77c2000 r-xp 00000000 09:03 959021     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b77c2000-b77c3000 ---p 00156000 09:03 959021     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b77c3000-b77c5000 r--p 00156000 09:03 959021     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b77c5000-b77c6000 rw-p 00158000 09:03 959021     /lib/i386-linux-gnu/i686/cmov/libc-2.13.so
b77c6000-b77c9000 rw-p 00000000 00:00 0 
b77c9000-b77ed000 r-xp 00000000 09:03 959049     /lib/i386-linux-gnu/i686/cmov/libm-2.13.so
b77ed000-b77ee000 r--p 00023000 09:03 959049     /lib/i386-linux-gnu/i686/cmov/libm-2.13.so
b77ee000-b77ef000 rw-p 00024000 09:03 959049     /lib/i386-linux-gnu/i686/cmov/libm-2.13.so
b77f3000-b77f5000 rw-p 00000000 00:00 0 
b77f5000-b77f6000 r-xp 00000000 00:00 0          [vdso]
b77f6000-b7812000 r-xp 00000000 09:03 92142      /lib/i386-linux-gnu/ld-2.13.so
b7812000-b7813000 r--p 0001b000 09:03 92142      /lib/i386-linux-gnu/ld-2.13.so
b7813000-b7814000 rw-p 0001c000 09:03 92142      /lib/i386-linux-gnu/ld-2.13.so
bfef8000-bff19000 rw-p 00000000 00:00 0          [stack]
https://ideone.com/uWhfK8
language:
C (gcc 8.3)
created:
11 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!