From f7fe678a4ada859a2e4fbbeeb0b1dff5b5887227 Mon Sep 17 00:00:00 2001
From: tsepez <tsepez@chromium.org>
Date: Wed, 11 May 2016 17:35:35 -0700
Subject: Add much-needed Find() method for CFX_*StringC

BUG=pdfium:493

Review-Url: https://codereview.chromium.org/1968233002
---
 core/fxcrt/include/fx_string.h | 12 ++++++++++++
 core/fxcrt/include/fx_system.h |  3 ---
 2 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'core/fxcrt/include')

diff --git a/core/fxcrt/include/fx_string.h b/core/fxcrt/include/fx_string.h
index 66a8039a8d..fbfb91f759 100644
--- a/core/fxcrt/include/fx_string.h
+++ b/core/fxcrt/include/fx_string.h
@@ -100,6 +100,12 @@ class CFX_ByteStringC {
 
   uint8_t GetAt(FX_STRSIZE index) const { return m_Ptr[index]; }
 
+  FX_STRSIZE Find(FX_CHAR ch) const {
+    const uint8_t* found =
+        static_cast<const uint8_t*>(memchr(m_Ptr, ch, m_Length));
+    return found ? found - m_Ptr : -1;
+  }
+
   CFX_ByteStringC Mid(FX_STRSIZE index, FX_STRSIZE count = -1) const {
     if (index < 0) {
       index = 0;
@@ -417,6 +423,12 @@ class CFX_WideStringC {
     return CFX_WideStringC(m_Ptr, count);
   }
 
+  FX_STRSIZE Find(FX_WCHAR ch) const {
+    const FX_WCHAR* found =
+        static_cast<const FX_WCHAR*>(wmemchr(m_Ptr, ch, m_Length));
+    return found ? found - m_Ptr : -1;
+  }
+
   CFX_WideStringC Mid(FX_STRSIZE index, FX_STRSIZE count = -1) const {
     if (index < 0) {
       index = 0;
diff --git a/core/fxcrt/include/fx_system.h b/core/fxcrt/include/fx_system.h
index 795a0c2794..b4659d14e4 100644
--- a/core/fxcrt/include/fx_system.h
+++ b/core/fxcrt/include/fx_system.h
@@ -123,7 +123,6 @@ void FXSYS_vsnprintf(char* str, size_t size, const char* fmt, va_list ap);
 
 #define FXSYS_sprintf DO_NOT_USE_SPRINTF_DIE_DIE_DIE
 #define FXSYS_vsprintf DO_NOT_USE_VSPRINTF_DIE_DIE_DIE
-#define FXSYS_strchr strchr
 #define FXSYS_strncmp strncmp
 #define FXSYS_strcmp strcmp
 #define FXSYS_strcpy strcpy
@@ -166,7 +165,6 @@ extern "C" {
 #endif
 
 #define FXSYS_wcscmp wcscmp
-#define FXSYS_wcschr wcschr
 #define FXSYS_wcsstr wcsstr
 #define FXSYS_wcsncmp wcsncmp
 #define FXSYS_vswprintf vswprintf
@@ -176,7 +174,6 @@ extern "C" {
 #define FXSYS_memcpy memcpy
 #define FXSYS_memmove memmove
 #define FXSYS_memset memset
-#define FXSYS_memchr memchr
 #define FXSYS_qsort qsort
 #define FXSYS_bsearch bsearch
 
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