Re: [ft] FT_Load_Glyph returns an error

[YuGiOhJCJ Mailing-List]

On Sun, 13 Nov 2016 09:07:01 +0100 (CET)
Werner LEMBERG <address@hidden> wrote:

> >> And indeed, you have forgotten to set a proper size (with
> >> `FT_Set_Char_Size', for example) before calling `FT_Load_Glyph'.
> >
> > Thank you, it works now but I have some memory leaks (74 allocs, 68
> > frees).  [...]
> 
> Please make your homework first:
> 
> > ==1477== Rerun with --leak-check=full to see details of leaked
> >          memory
> 
> If you try that you get more information that should help you identify
> the problem.
> 

Here is the result with --leak-check=full:
---
$ valgrind --leak-check=full ./a.out 
==1236== Memcheck, a memory error detector
==1236== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==1236== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==1236== Command: ./a.out
==1236== 
==1236== 
==1236== HEAP SUMMARY:
==1236==     in use at exit: 18,604 bytes in 6 blocks
==1236==   total heap usage: 74 allocs, 68 frees, 53,175 bytes allocated
==1236== 
==1236== LEAK SUMMARY:
==1236==    definitely lost: 0 bytes in 0 blocks
==1236==    indirectly lost: 0 bytes in 0 blocks
==1236==      possibly lost: 0 bytes in 0 blocks
==1236==    still reachable: 18,604 bytes in 6 blocks
==1236==         suppressed: 0 bytes in 0 blocks
==1236== Reachable blocks (those to which a pointer was found) are not shown.
==1236== To see them, rerun with: --leak-check=full --show-leak-kinds=all
==1236== 
==1236== For counts of detected and suppressed errors, rerun with: -v
==1236== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
---

And now with --leak-check=full and --show-leak-kinds=all:
---
$ valgrind --leak-check=full --show-leak-kinds=all ./a.out 
==1240== Memcheck, a memory error detector
==1240== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==1240== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==1240== Command: ./a.out
==1240== 
==1240== 
==1240== HEAP SUMMARY:
==1240==     in use at exit: 18,604 bytes in 6 blocks
==1240==   total heap usage: 74 allocs, 68 frees, 53,175 bytes allocated
==1240== 
==1240== 4 bytes in 1 blocks are still reachable in loss record 1 of 6
==1240==    at 0x4C2CB7F: malloc (vg_replace_malloc.c:299)
==1240==    by 0x57A8E82: g_private_impl_new (in 
/usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57A93A4: g_private_get (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57821EC: g_slice_alloc (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x5753B1D: g_hash_table_new_full (in 
/usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57755EA: g_quark_init (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x4010339: call_init.part.0 (in /lib64/ld-2.23.so)
==1240==    by 0x401044A: _dl_init (in /lib64/ld-2.23.so)
==1240==    by 0x4000C99: ??? (in /lib64/ld-2.23.so)
==1240== 
==1240== 32 bytes in 1 blocks are still reachable in loss record 2 of 6
==1240==    at 0x4C2EB45: calloc (vg_replace_malloc.c:711)
==1240==    by 0x576A2C0: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x5753B84: g_hash_table_new_full (in 
/usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57755EA: g_quark_init (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x4010339: call_init.part.0 (in /lib64/ld-2.23.so)
==1240==    by 0x401044A: _dl_init (in /lib64/ld-2.23.so)
==1240==    by 0x4000C99: ??? (in /lib64/ld-2.23.so)
==1240== 
==1240== 64 bytes in 1 blocks are still reachable in loss record 3 of 6
==1240==    at 0x4C2EB45: calloc (vg_replace_malloc.c:711)
==1240==    by 0x576A2C0: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x5753B6F: g_hash_table_new_full (in 
/usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57755EA: g_quark_init (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x4010339: call_init.part.0 (in /lib64/ld-2.23.so)
==1240==    by 0x401044A: _dl_init (in /lib64/ld-2.23.so)
==1240==    by 0x4000C99: ??? (in /lib64/ld-2.23.so)
==1240== 
==1240== 88 bytes in 1 blocks are still reachable in loss record 4 of 6
==1240==    at 0x4C2CB7F: malloc (vg_replace_malloc.c:299)
==1240==    by 0x576A268: g_malloc (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x5782212: g_slice_alloc (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x5753B1D: g_hash_table_new_full (in 
/usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57755EA: g_quark_init (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x4010339: call_init.part.0 (in /lib64/ld-2.23.so)
==1240==    by 0x401044A: _dl_init (in /lib64/ld-2.23.so)
==1240==    by 0x4000C99: ??? (in /lib64/ld-2.23.so)
==1240== 
==1240== 2,032 bytes in 1 blocks are still reachable in loss record 5 of 6
==1240==    at 0x4C2EB45: calloc (vg_replace_malloc.c:711)
==1240==    by 0x576A2C0: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x578247B: g_slice_alloc (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x5753B1D: g_hash_table_new_full (in 
/usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57755EA: g_quark_init (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x4010339: call_init.part.0 (in /lib64/ld-2.23.so)
==1240==    by 0x401044A: _dl_init (in /lib64/ld-2.23.so)
==1240==    by 0x4000C99: ??? (in /lib64/ld-2.23.so)
==1240== 
==1240== 16,384 bytes in 1 blocks are still reachable in loss record 6 of 6
==1240==    at 0x4C2CB7F: malloc (vg_replace_malloc.c:299)
==1240==    by 0x576A268: g_malloc (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x57755FB: g_quark_init (in /usr/lib64/libglib-2.0.so.0.5000.0)
==1240==    by 0x4010339: call_init.part.0 (in /lib64/ld-2.23.so)
==1240==    by 0x401044A: _dl_init (in /lib64/ld-2.23.so)
==1240==    by 0x4000C99: ??? (in /lib64/ld-2.23.so)
==1240== 
==1240== LEAK SUMMARY:
==1240==    definitely lost: 0 bytes in 0 blocks
==1240==    indirectly lost: 0 bytes in 0 blocks
==1240==      possibly lost: 0 bytes in 0 blocks
==1240==    still reachable: 18,604 bytes in 6 blocks
==1240==         suppressed: 0 bytes in 0 blocks
==1240== 
==1240== For counts of detected and suppressed errors, rerun with: -v
==1240== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
---