From 12db7515f17228798d1aa38fce0fee3e7d2d36b6 Mon Sep 17 00:00:00 2001 From: Ryan Harrison Date: Wed, 23 Aug 2017 10:39:35 -0400 Subject: 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, 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 Reviewed-by: dsinclair --- core/fxcrt/fx_system.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'core/fxcrt/fx_system.h') 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(strlen(ptr)) #define FXSYS_wcslen(ptr) pdfium::base::checked_cast(wcslen(ptr)) -- cgit v1.2.3