Mercurial > vim
comparison src/register.c @ 26083:a677aa897843 v8.2.3575
patch 8.2.3575: overflow check still fails when sizeof(int) == sizeof(long)
Commit: https://github.com/vim/vim/commit/e551ccfb9311eea5252d1c3106ff7a53c762d994
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Nov 2 23:11:00 2021 +0000
patch 8.2.3575: overflow check still fails when sizeof(int) == sizeof(long)
Problem: Overflow check still fails when sizeof(int) == sizeof(long).
Solution: Use a float to check the result.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 03 Nov 2021 00:15:04 +0100 |
| parents | 6b6163d42b22 |
| children | 14a55d1520f2 |
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| 26082:b09f70b14a30 | 26083:a677aa897843 |
|---|---|
| 2009 getvcol(curwin, &pos, NULL, &vcol, NULL); | 2009 getvcol(curwin, &pos, NULL, &vcol, NULL); |
| 2010 } | 2010 } |
| 2011 } | 2011 } |
| 2012 | 2012 |
| 2013 do { | 2013 do { |
| 2014 #ifdef FEAT_FLOAT | |
| 2015 double multlen = (double)count * (double)yanklen; | |
| 2016 | |
| 2017 totlen = count * yanklen; | |
| 2018 if ((double)totlen != multlen) | |
| 2019 #else | |
| 2014 long multlen = count * yanklen; | 2020 long multlen = count * yanklen; |
| 2015 | 2021 |
| 2022 // this only works when sizeof(int) != sizeof(long) | |
| 2016 totlen = multlen; | 2023 totlen = multlen; |
| 2017 if (count != 0 && yanklen != 0 | 2024 if (totlen != multlen) |
| 2018 && (totlen != multlen || totlen / count != yanklen | 2025 #endif |
| 2019 || totlen / yanklen != count)) | |
| 2020 { | 2026 { |
| 2021 emsg(_(e_resulting_text_too_long)); | 2027 emsg(_(e_resulting_text_too_long)); |
| 2022 break; | 2028 break; |
| 2023 } | 2029 } |
| 2024 else if (totlen > 0) | 2030 else if (totlen > 0) |