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author | Karen Arutyunov <karen@codesynthesis.com> | 2018-12-15 17:19:47 +0300 |
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committer | Karen Arutyunov <karen@codesynthesis.com> | 2018-12-15 17:19:47 +0300 |
commit | daa816fc2e7c6cbb669ba030d45dd979ef37f7c2 (patch) | |
tree | e184a19e2033a997539a81f9045ad0da6fbcf219 /build2/depdb.cxx | |
parent | ffd31a88c349661bd624661f76492e70e287b845 (diff) |
Fix line counting in cc::lexer
Diffstat (limited to 'build2/depdb.cxx')
-rw-r--r-- | build2/depdb.cxx | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/build2/depdb.cxx b/build2/depdb.cxx index f89daba..c963387 100644 --- a/build2/depdb.cxx +++ b/build2/depdb.cxx @@ -117,7 +117,9 @@ namespace build2 if (trunc) fdtruncate (fd.get (), pos_); - // Note: seek is required to switch from reading to writing. + // Note: the file descriptor position can be beyond the pos_ value due to + // the ifdstream buffering. That's why we need to seek to switch from + // reading to writing. // fdseek (fd.get (), pos_, fdseek_mode::set); |