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| author | Ryan Harrison <rharrison@chromium.org> | 2017-08-23 10:39:35 -0400 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2017-08-23 15:11:19 +0000 |
| commit | 12db7515f17228798d1aa38fce0fee3e7d2d36b6 (patch) | |
| tree | e291daf9e6a88ba0248670b9f1ba3a555f052538 /core/fxcrt/fx_system.h | |
| parent | 3bb0a34cc75abe49a59c6390353957bbb5c5ab38 (diff) | |
| download | pdfium-12db7515f17228798d1aa38fce0fee3e7d2d36b6.tar.xz | |
Convert string Find methods to return an Optional
The Find and ReverseFind methods for WideString, WideStringC,
ByteString, and ByteStringC have been converted from returning a raw
FX_STRSIZE, to returning Optional<FX_STRSIZE>, so that success/failure
can be indicated without using FX_STRNPOS.
This allows for removing FX_STRNPOS and by association makes the
conversion of FX_STRSIZE to size_t easier, since it forces checking
the return value of Find to be explictly done as well as taking the
error value out of the range of FX_STRSIZE.
New Contains methods have been added for cases where the success or
failure is all the call site to Find cared about, and the actual
position was ignored.
BUG=pdfium:828
Change-Id: Id827e508c8660affa68cc08a13d96121369364b7
Reviewed-on: https://pdfium-review.googlesource.com/11350
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'core/fxcrt/fx_system.h')
| -rw-r--r-- | core/fxcrt/fx_system.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/core/fxcrt/fx_system.h b/core/fxcrt/fx_system.h index 47d588c521..ad7e6bbcd7 100644 --- a/core/fxcrt/fx_system.h +++ b/core/fxcrt/fx_system.h @@ -121,10 +121,6 @@ typedef int FX_STRSIZE; #include "third_party/base/numerics/safe_conversions.h" -// Constant used to indicate failure from find methods and other methods that -// return FX_STRSIZE. -constexpr FX_STRSIZE FX_STRNPOS = -1; - #define FXSYS_strlen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(strlen(ptr)) #define FXSYS_wcslen(ptr) pdfium::base::checked_cast<FX_STRSIZE>(wcslen(ptr)) |