threads.cpp: resource leak on threads creation failure

[noloader@…]

There's a number of reasons a thread might fail to be created, especially on Windows CE. For example, specifying a SecurityAttributes structure or creating more than ~20 threads will result in thread creation failure.

Index: thread.cpp =================================================================== RCS file: /cvsroot/boost/boost/libs/thread/src/thread.cpp,v retrieving revision 1.25 diff -r1.25 thread.cpp 57a58

ThreadProxyData* data = new ThreadProxyData(start_address,arglist);

59,60c60,65 < new ThreadProxyData(start_address,arglist),initflag,&threadID); < if (hthread!=0) ---

data,initflag,&threadID);

if (hthread==0) {

delete data; return 0;

} if (thrdaddr!=0)

[viboes]

I will take care of it soon.

[viboes]

Committed in trunk at #75860

[viboes]

Committed in release at #76345