string find

[Anthony Williams]

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find now works, the testsuite is incorrect (!)

Here is a patch to fix the testsuite, with a new check for find of an empty
string past the end. This test now passes again.

Index: testsuite/21_strings/find.cc
===================================================================
RCS file: /cvs/gcc/egcs/libstdc++-v3/testsuite/21_strings/find.cc,v
retrieving revision 1.3
diff -c -p -r1.3 find.cc
*** find.cc     2000/06/20 23:14:37     1.3
- --- find.cc     2000/06/22 10:14:05
*************** bool test01(void)
*** 65,70 ****
- --- 65,72 ----
    csz01 = str01.find(str04, 5);
    test &= csz01 == 5;
    csz01 = str01.find(str04, str01.size());
+   test &= csz01 == str01.size(); 
+   csz01 = str01.find(str04, str01.size()+1);
    test &= csz01 == npos; 
    
    // size_type find(const char* s, size_type pos, size_type n) const;
*************** bool test01(void)
*** 77,83 ****
    csz01 = str01.find(str_lit01);
    test &= csz01 == 0;
    csz01 = str01.find(str_lit01, 3);
!   test &= csz01 == 3; // zero length string should be found at pos
  
    // size_type find(char c, size_type pos = 0) const;
    csz01 = str01.find('z');
- --- 79,85 ----
    csz01 = str01.find(str_lit01);
    test &= csz01 == 0;
    csz01 = str01.find(str_lit01, 3);
!   test &= csz01 == npos;
  
    // size_type find(char c, size_type pos = 0) const;
    csz01 = str01.find('z');

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