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[v3] Fix _S_local_capacity for large sizeof(_CharT)

Message ID 54985B09.6040606@oracle.com
State New
Headers show

Commit Message

Paolo Carlini Dec. 22, 2014, 5:55 p.m. UTC 
Hi,

minimally, fix _S_local_capacity for sizeof(_CharT) > 16. Probably we'll 
come back to it in order to tune it more finely for char, wchar_t, 
char16_t, and char32_t.

Tested x86_64-linux.

Thanks,
Paolo.

///////////////////////
2014-12-22  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/basic_string.h: Fix _S_local_capacity for
	large sizeof(_CharT).
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Patch

Index: include/bits/basic_string.h
===================================================================
--- include/bits/basic_string.h	(revision 219015)
+++ include/bits/basic_string.h	(working copy)
@@ -114,7 +114,7 @@ 
       _Alloc_hider	_M_dataplus;
       size_type		_M_string_length;
 
-      enum { _S_local_capacity = 16 / sizeof(_CharT) - 1 };
+      enum { _S_local_capacity = 15 / sizeof(_CharT) };
 
       union
       {