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Add lengthof and endof templates that hide a lot of sizeof computations.

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Patch by Sterling Stein!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41758 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2007-09-07 04:06:50 +00:00
parent af992f782f
commit 718cb665ca
16 changed files with 68 additions and 47 deletions
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7
lib/System/Unix/Signals.inc
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@@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===//
#include "Unix.h"
#include "llvm/ADT/STLExtras.h"
#include <vector>
#include <algorithm>
#if HAVE_EXECINFO_H
@@ -40,7 +41,7 @@ std::vector<sys::Path> *DirectoriesToRemove = 0;
const int IntSigs[] = {
SIGHUP, SIGINT, SIGQUIT, SIGPIPE, SIGTERM, SIGUSR1, SIGUSR2
};
const int *IntSigsEnd = IntSigs + sizeof(IntSigs)/sizeof(IntSigs[0]);
const int *IntSigsEnd = array_endof(IntSigs);
// KillSigs - Signals that are synchronous with the program that will cause it
// to die.
@@ -50,7 +51,7 @@ const int KillSigs[] = {
, SIGEMT
#endif
};
const int *KillSigsEnd = KillSigs + sizeof(KillSigs)/sizeof(KillSigs[0]);
const int *KillSigsEnd = array_endof(KillSigs);
#ifdef HAVE_BACKTRACE
void* StackTrace[256];
@@ -68,7 +69,7 @@ void* StackTrace[256];
void PrintStackTrace() {
#ifdef HAVE_BACKTRACE
// Use backtrace() to output a backtrace on Linux systems with glibc.
int depth = backtrace(StackTrace, sizeof(StackTrace)/sizeof(StackTrace[0]));
int depth = backtrace(StackTrace, array_lengthof(StackTrace));
// Create a one-way unix pipe. The backtracing process writes to PipeFDs[1],
// the c++filt process reads from PipeFDs[0].