[NFC][libc++abi] Remove trailing whitespace from sources

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@373379 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 86 insertions, 86 deletions

diff --git a/src/cxa_exception.cpp b/src/cxa_exception.cpp
index 688ba1e..7d56c42 100644
--- a/src/cxa_exception.cpp
+++ b/src/cxa_exception.cpp
@@ -4,10 +4,10 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//  
+//
 //  This file implements the "Exception Handling APIs"
 //  https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
-//  
+//
 //===----------------------------------------------------------------------===//
 
 #include "cxxabi.h"
@@ -81,7 +81,7 @@ size_t cxa_exception_size_from_exception_thrown_size(size_t size) {
 void __setExceptionClass(_Unwind_Exception* unwind_exception, uint64_t newValue) {
 	::memcpy(&unwind_exception->exception_class, &newValue, sizeof(newValue));
 	}
-	
+
 
 static void setOurExceptionClass(_Unwind_Exception* unwind_exception) {
     __setExceptionClass(unwind_exception, kOurExceptionClass);
@@ -103,7 +103,7 @@ uint64_t __getExceptionClass(const _Unwind_Exception* unwind_exception) {
 }
 
 bool __isOurExceptionClass(const _Unwind_Exception* unwind_exception) {
-    return (__getExceptionClass(unwind_exception) & get_vendor_and_language) == 
+    return (__getExceptionClass(unwind_exception) & get_vendor_and_language) ==
            (kOurExceptionClass                    & get_vendor_and_language);
 }
 
@@ -123,7 +123,7 @@ static inline  int decrementHandlerCount(__cxa_exception *exception) {
 
 /*
     If reason isn't _URC_FOREIGN_EXCEPTION_CAUGHT, then the terminateHandler
-    stored in exc is called.  Otherwise the exceptionDestructor stored in 
+    stored in exc is called.  Otherwise the exceptionDestructor stored in
     exc is called, and then the memory for the exception is deallocated.
 
     This is never called for a __cxa_dependent_exception.
@@ -145,7 +145,7 @@ static _LIBCXXABI_NORETURN void failed_throw(__cxa_exception* exception_header)
 //      * For purposes of this ABI, several things are considered exception handlers:
 //      ** A terminate() call due to a throw.
 //  and
-//      * Upon entry, Following initialization of the catch parameter, 
+//      * Upon entry, Following initialization of the catch parameter,
 //          a handler must call:
 //      * void *__cxa_begin_catch(void *exceptionObject );
     (void) __cxa_begin_catch(&exception_header->unwindHeader);
@@ -237,15 +237,15 @@ routine never returns.
 The __cxa_throw routine will do the following:
 
 * Obtain the __cxa_exception header from the thrown exception object address,
-which can be computed as follows: 
- __cxa_exception *header = ((__cxa_exception *) thrown_exception - 1); 
+which can be computed as follows:
+ __cxa_exception *header = ((__cxa_exception *) thrown_exception - 1);
 * Save the current unexpected_handler and terminate_handler in the __cxa_exception header.
-* Save the tinfo and dest arguments in the __cxa_exception header. 
+* Save the tinfo and dest arguments in the __cxa_exception header.
 * Set the exception_class field in the unwind header. This is a 64-bit value
 representing the ASCII string "XXXXC++\0", where "XXXX" is a
 vendor-dependent string. That is, for implementations conforming to this
 ABI, the low-order 4 bytes of this 64-bit value will be "C++\0".
-* Increment the uncaught_exception flag. 
+* Increment the uncaught_exception flag.
 * Call _Unwind_RaiseException in the system unwind library, Its argument is the
 pointer to the thrown exception, which __cxa_throw itself received as an argument.
 __Unwind_RaiseException begins the process of stack unwinding, described
@@ -386,7 +386,7 @@ asm (
     "	.popsection"
 );
 #endif  // defined(_LIBCXXABI_ARM_EHABI)
-    
+
 /*
 This routine can catch foreign or native exceptions.  If native, the exception
 can be a primary or dependent variety.  This routine may remain blissfully
@@ -394,7 +394,7 @@ ignorant of whether the native exception is primary or dependent.
 
 If the exception is native:
 * Increment's the exception's handler count.
-* Push the exception on the stack of currently-caught exceptions if it is not 
+* Push the exception on the stack of currently-caught exceptions if it is not
   already there (from a rethrow).
 * Decrements the uncaught_exception count.
 * Returns the adjusted pointer to the exception object, which is stored in
@@ -415,7 +415,7 @@ to terminate or unexpected during unwinding.
   doesn't.  It has a stack of __cxa_exception (which has a next* in it).
 * Do not decrement the uncaught_exception count because we didn't increment it
   in __cxa_throw (or one of our rethrow functions).
-* If we haven't terminated, assume the exception object is just past the 
+* If we haven't terminated, assume the exception object is just past the
   _Unwind_Exception and return a pointer to that.
 */
 void*
@@ -539,7 +539,7 @@ void __cxa_end_catch() {
                     __cxa_decrement_exception_refcount(thrown_object_from_cxa_exception(exception_header));
                 }
             }
-        }       
+        }
         else
         {
             // The foreign exception has not been rethrown.  Pop the stack
@@ -572,10 +572,10 @@ std::type_info *__cxa_current_exception_type() {
 // 2.5.4 Rethrowing Exceptions
 /*  This routine can rethrow native or foreign exceptions.
 If the exception is native:
-* marks the exception object on top of the caughtExceptions stack 
-  (in an implementation-defined way) as being rethrown. 
-* If the caughtExceptions stack is empty, it calls terminate() 
-  (see [C++FDIS] [except.throw], 15.1.8). 
+* marks the exception object on top of the caughtExceptions stack
+  (in an implementation-defined way) as being rethrown.
+* If the caughtExceptions stack is empty, it calls terminate()
+  (see [C++FDIS] [except.throw], 15.1.8).
 * It then calls _Unwind_RaiseException which should not return
    (terminate if it does).
   Note:  exception_header may be masquerading as a __cxa_dependent_exception
@@ -609,7 +609,7 @@ void __cxa_rethrow() {
 #endif
 
     //  If we get here, some kind of unwinding error has occurred.
-    //  There is some weird code generation bug happening with 
+    //  There is some weird code generation bug happening with
     //     Apple clang version 4.0 (tags/Apple/clang-418.0.2) (based on LLVM 3.1svn)
     //     If we call failed_throw here.  Turns up with -O2 or higher, and -Os.
     __cxa_begin_catch(&exception_header->unwindHeader);
@@ -664,7 +664,7 @@ void __cxa_decrement_exception_refcount(void *thrown_object) throw() {
     returns null.
 
     We can use __cxa_get_globals_fast here to get the globals because if there have
-    been no exceptions thrown, ever, on this thread, we can return NULL without 
+    been no exceptions thrown, ever, on this thread, we can return NULL without
     the need to allocate the exception-handling globals.
 */
 void *__cxa_current_primary_exception() throw() {
@@ -697,7 +697,7 @@ static
 void
 dependent_exception_cleanup(_Unwind_Reason_Code reason, _Unwind_Exception* unwind_exception)
 {
-    __cxa_dependent_exception* dep_exception_header = 
+    __cxa_dependent_exception* dep_exception_header =
                       reinterpret_cast<__cxa_dependent_exception*>(unwind_exception + 1) - 1;
     if (_URC_FOREIGN_EXCEPTION_CAUGHT != reason)
         std::__terminate(dep_exception_header->terminateHandler);
diff --git a/src/cxa_exception.h b/src/cxa_exception.h
index d24b80a..d7999e0 100644
--- a/src/cxa_exception.h
+++ b/src/cxa_exception.h
@@ -4,10 +4,10 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//  
+//
 //  This file implements the "Exception Handling APIs"
 //  https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
-//  
+//
 //===----------------------------------------------------------------------===//
 
 #ifndef _CXA_EXCEPTION_H
diff --git a/src/cxa_exception_storage.cpp b/src/cxa_exception_storage.cpp
index dea6702..28c0122 100644
--- a/src/cxa_exception_storage.cpp
+++ b/src/cxa_exception_storage.cpp
@@ -4,10 +4,10 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//  
+//
 //  This file implements the storage for the "Caught Exception Stack"
 //  https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html#cxx-exc-stack
-//  
+//
 //===----------------------------------------------------------------------===//
 
 #include "cxa_exception.h"
@@ -69,13 +69,13 @@ namespace {
         if ( 0 != std::__libcpp_tls_create ( &key_, destruct_ ) )
             abort_message("cannot create thread specific key for __cxa_get_globals()");
         }
-}   
+}
 
 extern "C" {
     __cxa_eh_globals * __cxa_get_globals () {
     //  Try to get the globals for this thread
         __cxa_eh_globals* retVal = __cxa_get_globals_fast ();
-    
+
     //  If this is the first time we've been asked for these globals, create them
         if ( NULL == retVal ) {
             retVal = static_cast<__cxa_eh_globals*>
@@ -99,7 +99,7 @@ extern "C" {
 //        static int init = construct_();
         return static_cast<__cxa_eh_globals*>(std::__libcpp_tls_get(key_));
         }
-    
+
 }
 }
 #endif
diff --git a/src/cxa_noexception.cpp b/src/cxa_noexception.cpp
index 2182c70..73e0b2a 100644
--- a/src/cxa_noexception.cpp
+++ b/src/cxa_noexception.cpp
@@ -4,10 +4,10 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//  
+//
 //  This file implements the "Exception Handling APIs"
 //  https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
-//  
+//
 //===----------------------------------------------------------------------===//
 
 // Support functions for the no-exceptions libc++ library
diff --git a/src/cxa_personality.cpp b/src/cxa_personality.cpp
index f140b74..f276257 100644
--- a/src/cxa_personality.cpp
+++ b/src/cxa_personality.cpp
@@ -4,11 +4,11 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//  
+//
 //  This file implements the "Exception Handling APIs"
 //  https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
 //  http://www.intel.com/design/itanium/downloads/245358.htm
-//  
+//
 //===----------------------------------------------------------------------===//
 
 #include <assert.h>
@@ -188,8 +188,8 @@ enum
     DW_EH_PE_omit     = 0xFF
 };
 
-/// Read a uleb128 encoded value and advance pointer 
-/// See Variable Length Data Appendix C in: 
+/// Read a uleb128 encoded value and advance pointer
+/// See Variable Length Data Appendix C in:
 /// @link http://dwarfstd.org/Dwarf4.pdf @unlink
 /// @param data reference variable holding memory pointer to decode from
 /// @returns decoded value
@@ -211,8 +211,8 @@ readULEB128(const uint8_t** data)
     return result;
 }
 
-/// Read a sleb128 encoded value and advance pointer 
-/// See Variable Length Data Appendix C in: 
+/// Read a sleb128 encoded value and advance pointer
+/// See Variable Length Data Appendix C in:
 /// @link http://dwarfstd.org/Dwarf4.pdf @unlink
 /// @param data reference variable holding memory pointer to decode from
 /// @returns decoded value
@@ -236,8 +236,8 @@ readSLEB128(const uint8_t** data)
     return static_cast<intptr_t>(result);
 }
 
-/// Read a pointer encoded value and advance pointer 
-/// See Variable Length Data in: 
+/// Read a pointer encoded value and advance pointer
+/// See Variable Length Data in:
 /// @link http://dwarfstd.org/Dwarf3.pdf @unlink
 /// @param data reference variable holding memory pointer to decode from
 /// @param encoding dwarf encoding type
@@ -247,10 +247,10 @@ uintptr_t
 readEncodedPointer(const uint8_t** data, uint8_t encoding)
 {
     uintptr_t result = 0;
-    if (encoding == DW_EH_PE_omit) 
+    if (encoding == DW_EH_PE_omit)
         return result;
     const uint8_t* p = *data;
-    // first get value 
+    // first get value
     switch (encoding & 0x0F)
     {
     case DW_EH_PE_absptr:
@@ -281,15 +281,15 @@ readEncodedPointer(const uint8_t** data, uint8_t encoding)
         result = readPointerHelper<int64_t>(p);
         break;
     default:
-        // not supported 
+        // not supported
         abort();
         break;
     }
-    // then add relative offset 
+    // then add relative offset
     switch (encoding & 0x70)
     {
     case DW_EH_PE_absptr:
-        // do nothing 
+        // do nothing
         break;
     case DW_EH_PE_pcrel:
         if (result)
@@ -300,11 +300,11 @@ readEncodedPointer(const uint8_t** data, uint8_t encoding)
     case DW_EH_PE_funcrel:
     case DW_EH_PE_aligned:
     default:
-        // not supported 
+        // not supported
         abort();
         break;
     }
-    // then apply indirection 
+    // then apply indirection
     if (result && (encoding & DW_EH_PE_indirect))
         result = *((uintptr_t*)result);
     *data = p;
@@ -613,7 +613,7 @@ static void scan_eh_tab(scan_results &results, _Unwind_Action actions,
     // Get the current instruction pointer and offset it before next
     // instruction in the current frame which threw the exception.
     uintptr_t ip = _Unwind_GetIP(context) - 1;
-    // Get beginning current frame's code (as defined by the 
+    // Get beginning current frame's code (as defined by the
     // emitted dwarf code)
     uintptr_t funcStart = _Unwind_GetRegionStart(context);
 #ifdef __USING_SJLJ_EXCEPTIONS__
@@ -646,8 +646,8 @@ static void scan_eh_tab(scan_results &results, _Unwind_Action actions,
         uintptr_t classInfoOffset = readULEB128(&lsda);
         classInfo = lsda + classInfoOffset;
     }
-    // Walk call-site table looking for range that 
-    // includes current PC. 
+    // Walk call-site table looking for range that
+    // includes current PC.
     uint8_t callSiteEncoding = *lsda++;
 #ifdef __USING_SJLJ_EXCEPTIONS__
     (void)callSiteEncoding;  // When using SjLj exceptions, callSiteEncoding is never used
@@ -928,13 +928,13 @@ _UA_CLEANUP_PHASE
         else
             Recover state from header
         Transfer control to landing pad.  return _URC_INSTALL_CONTEXT
-    
+
     Else
 
         This branch handles both normal C++ non-catching handlers (cleanups)
-          and forced unwinding.    
+          and forced unwinding.
         Scan for anything that can not stop unwinding:
-    
+
             1.  A cleanup.
 
         If a cleanup is found
diff --git a/src/cxa_vector.cpp b/src/cxa_vector.cpp
index 3237b1d..cc358f0 100644
--- a/src/cxa_vector.cpp
+++ b/src/cxa_vector.cpp
@@ -4,10 +4,10 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
-//  
+//
 //  This file implements the "Array Construction and Destruction APIs"
 //  https://itanium-cxx-abi.github.io/cxx-abi/abi.html#array-ctor
-//  
+//
 //===----------------------------------------------------------------------===//
 
 #include "cxxabi.h"
@@ -51,27 +51,27 @@ namespace {
     class st_heap_block2 {
     public:
         typedef void (*dealloc_f)(void *);
-        
-        st_heap_block2 ( dealloc_f dealloc, void *ptr ) 
+
+        st_heap_block2 ( dealloc_f dealloc, void *ptr )
             : dealloc_ ( dealloc ), ptr_ ( ptr ), enabled_ ( true ) {}
         ~st_heap_block2 () { if ( enabled_ ) dealloc_ ( ptr_ ) ; }
         void release () { enabled_ = false; }
-    
+
     private:
         dealloc_f dealloc_;
         void *ptr_;
         bool enabled_;
     };
-    
+
     class st_heap_block3 {
     public:
         typedef void (*dealloc_f)(void *, size_t);
-        
-        st_heap_block3 ( dealloc_f dealloc, void *ptr, size_t size ) 
+
+        st_heap_block3 ( dealloc_f dealloc, void *ptr, size_t size )
             : dealloc_ ( dealloc ), ptr_ ( ptr ), size_ ( size ), enabled_ ( true ) {}
         ~st_heap_block3 () { if ( enabled_ ) dealloc_ ( ptr_, size_ ) ; }
         void release () { enabled_ = false; }
-    
+
     private:
         dealloc_f dealloc_;
         void *ptr_;
@@ -82,17 +82,17 @@ namespace {
     class st_cxa_cleanup {
     public:
         typedef void (*destruct_f)(void *);
-        
+
         st_cxa_cleanup ( void *ptr, size_t &idx, size_t element_size, destruct_f destructor )
-            : ptr_ ( ptr ), idx_ ( idx ), element_size_ ( element_size ), 
+            : ptr_ ( ptr ), idx_ ( idx ), element_size_ ( element_size ),
                 destructor_ ( destructor ), enabled_ ( true ) {}
         ~st_cxa_cleanup () {
-            if ( enabled_ ) 
+            if ( enabled_ )
                 __cxa_vec_cleanup ( ptr_, idx_, element_size_, destructor_ );
             }
-        
+
         void release () { enabled_ = false; }
-    
+
     private:
         void *ptr_;
         size_t &idx_;
@@ -100,7 +100,7 @@ namespace {
         destruct_f destructor_;
         bool enabled_;
     };
-    
+
     class st_terminate {
     public:
         st_terminate ( bool enabled = true ) : enabled_ ( enabled ) {}
@@ -164,13 +164,13 @@ size_t calculate_allocation_size_or_throw(size_t element_count,
 extern "C" {
 
 // Equivalent to
-// 
+//
 //   __cxa_vec_new2(element_count, element_size, padding_size, constructor,
 //                  destructor, &::operator new[], &::operator delete[])
 _LIBCXXABI_FUNC_VIS void *
 __cxa_vec_new(size_t element_count, size_t element_size, size_t padding_size,
               void (*constructor)(void *), void (*destructor)(void *)) {
-    return __cxa_vec_new2 ( element_count, element_size, padding_size, 
+    return __cxa_vec_new2 ( element_count, element_size, padding_size,
         constructor, destructor, &::operator new [], &::operator delete [] );
 }
 
@@ -180,16 +180,16 @@ __cxa_vec_new(size_t element_count, size_t element_size, size_t padding_size,
 // the array preceded by the specified padding, initialize the cookie if
 // the padding is non-zero, and call the given constructor on each element.
 // Return the address of the array proper, after the padding.
-// 
+//
 // If alloc throws an exception, rethrow the exception. If alloc returns
 // NULL, return NULL. If the constructor throws an exception, call
 // destructor for any already constructed elements, and rethrow the
 // exception. If the destructor throws an exception, call std::terminate.
-// 
+//
 // The constructor may be NULL, in which case it must not be called. If the
 // padding_size is zero, the destructor may be NULL; in that case it must
 // not be called.
-// 
+//
 // Neither alloc nor dealloc may be NULL.
 _LIBCXXABI_FUNC_VIS void *
 __cxa_vec_new2(size_t element_count, size_t element_size, size_t padding_size,
@@ -208,12 +208,12 @@ __cxa_vec_new2(size_t element_count, size_t element_size, size_t padding_size,
             vec_base += padding_size;
             __set_element_count ( vec_base, element_count );
         }
-            
+
     //  Construct the elements
         __cxa_vec_ctor ( vec_base, element_count, element_size, constructor, destructor );
         heap.release ();    // We're good!
     }
-    
+
     return vec_base;
 }
 
@@ -237,16 +237,16 @@ __cxa_vec_new3(size_t element_count, size_t element_size, size_t padding_size,
             vec_base += padding_size;
             __set_element_count ( vec_base, element_count );
         }
-            
+
     //  Construct the elements
         __cxa_vec_ctor ( vec_base, element_count, element_size, constructor, destructor );
         heap.release ();    // We're good!
     }
-    
+
     return vec_base;
 }
- 
- 
+
+
 // Given the (data) addresses of a destination and a source array, an
 // element count and an element size, call the given copy constructor to
 // copy each element from the source array to the destination array. The
@@ -266,9 +266,9 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_cctor(void *dest_array, void *src_array,
         size_t idx = 0;
         char *src_ptr  = static_cast<char *>(src_array);
         char *dest_ptr = static_cast<char *>(dest_array);
-        st_cxa_cleanup cleanup ( dest_array, idx, element_size, destructor );        
+        st_cxa_cleanup cleanup ( dest_array, idx, element_size, destructor );
 
-        for ( idx = 0; idx < element_count; 
+        for ( idx = 0; idx < element_count;
                     ++idx, src_ptr += element_size, dest_ptr += element_size )
             constructor ( dest_ptr, src_ptr );
         cleanup.release ();     // We're good!
@@ -289,8 +289,8 @@ __cxa_vec_ctor(void *array_address, size_t element_count, size_t element_size,
     if ( NULL != constructor ) {
         size_t idx;
         char *ptr = static_cast <char *> ( array_address );
-        st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );        
-        
+        st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );
+
     //  Construct the elements
         for ( idx = 0; idx < element_count; ++idx, ptr += element_size )
             constructor ( ptr );
@@ -311,7 +311,7 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_dtor(void *array_address,
     if ( NULL != destructor ) {
         char *ptr = static_cast <char *> (array_address);
         size_t idx = element_count;
-        st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );        
+        st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );
         {
             st_terminate exception_guard (__cxa_uncaught_exception ());
             ptr +=  element_count * element_size;   // one past the last element
@@ -338,7 +338,7 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_cleanup(void *array_address,
         char *ptr = static_cast <char *> (array_address);
         size_t idx = element_count;
         st_terminate exception_guard;
-        
+
         ptr += element_count * element_size;    // one past the last element
         while ( idx-- > 0 ) {
             ptr -= element_size;
@@ -359,7 +359,7 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_cleanup(void *array_address,
 // throws a second exception, call terminate(). If padding_size is 0, the
 // destructor pointer must be NULL. If the destructor pointer is NULL, no
 // destructor call is to be made.
-// 
+//
 // The intent of this function is to permit an implementation to call this
 // function when confronted with an expression of the form delete[] p in
 // the source code, provided that the default deallocation function can be
@@ -387,9 +387,9 @@ __cxa_vec_delete2(void *array_address, size_t element_size, size_t padding_size,
         char *vec_base   = static_cast <char *> (array_address);
         char *heap_block = vec_base - padding_size;
         st_heap_block2 heap ( dealloc, heap_block );
-        
+
         if ( 0 != padding_size && NULL != destructor ) // call the destructors
-            __cxa_vec_dtor ( array_address, __get_element_count ( vec_base ), 
+            __cxa_vec_dtor ( array_address, __get_element_count ( vec_base ),
                                     element_size, destructor );
     }
 }