diff options
Diffstat (limited to 'core/fxcrt/cfx_string_c_template.h')
-rw-r--r-- | core/fxcrt/cfx_string_c_template.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/core/fxcrt/cfx_string_c_template.h b/core/fxcrt/cfx_string_c_template.h index 99948e90a0..db8b274410 100644 --- a/core/fxcrt/cfx_string_c_template.h +++ b/core/fxcrt/cfx_string_c_template.h @@ -9,10 +9,12 @@ #include <algorithm> #include <type_traits> +#include <utility> #include <vector> #include "core/fxcrt/cfx_unowned_ptr.h" #include "core/fxcrt/fx_system.h" +#include "third_party/base/optional.h" #include "third_party/base/stl_util.h" // An immutable string with caller-provided storage which must outlive the @@ -129,12 +131,16 @@ class CFX_StringCTemplate { return static_cast<CharType>(m_Ptr.Get()[index]); } - FX_STRSIZE Find(CharType ch) const { + pdfium::Optional<FX_STRSIZE> Find(CharType ch) const { const UnsignedType* found = reinterpret_cast<const UnsignedType*>(FXSYS_chr( reinterpret_cast<const CharType*>(m_Ptr.Get()), ch, m_Length)); - return found ? found - m_Ptr.Get() : FX_STRNPOS; + + return found ? pdfium::Optional<FX_STRSIZE>(found - m_Ptr.Get()) + : pdfium::Optional<FX_STRSIZE>(); } + bool Contains(CharType ch) const { return Find(ch).has_value(); } + CFX_StringCTemplate Mid(FX_STRSIZE index, FX_STRSIZE count) const { ASSERT(count >= 0); if (index > m_Length) |