[llvm-commits] [llvm] r73368 - in /llvm/trunk: include/llvm/System/Path.h lib/System/Unix/Path.inc lib/System/Win32/Path.inc

[Chris Lattner]

Author: lattner
Date: Sun Jun 14 23:17:07 2009
New Revision: 73368

URL: http://llvm.org/viewvc/llvm-project?rev=73368&view=rev
Log:
add a new static method to portably determine whether a patch is
absolute or not, based on a patch by Gregory Curfman!

Modified:
    llvm/trunk/include/llvm/System/Path.h
    llvm/trunk/lib/System/Unix/Path.inc
    llvm/trunk/lib/System/Win32/Path.inc

Modified: llvm/trunk/include/llvm/System/Path.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/System/Path.h?rev=73368&r1=73367&r2=73368&view=diff

==============================================================================
--- llvm/trunk/include/llvm/System/Path.h (original)
+++ llvm/trunk/include/llvm/System/Path.h Sun Jun 14 23:17:07 2009
@@ -309,6 +309,11 @@
       /// @brief Determine if the path is absolute.
       bool isAbsolute() const;
 
+      /// This function determines if the path name is absolute, as opposed to
+      /// relative.
+      /// @brief Determine if the path is absolute.
+      static bool isAbsolute(const char *NameStart, unsigned NameLen);
+
       /// This function opens the file associated with the path name provided by
       /// the Path object and reads its magic number. If the magic number at the
       /// start of the file matches \p magic, true is returned. In all other

Modified: llvm/trunk/lib/System/Unix/Path.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/Unix/Path.inc?rev=73368&r1=73367&r2=73368&view=diff

==============================================================================
--- llvm/trunk/lib/System/Unix/Path.inc (original)
+++ llvm/trunk/lib/System/Unix/Path.inc Sun Jun 14 23:17:07 2009
@@ -104,6 +104,14 @@
 }
 
 bool
+Path::isAbsolute(const char *NameStart, unsigned NameLen) {
+  assert(NameStart);
+  if (NameLen == 0)
+    return false;
+  return NameStart[0] == '/';
+}
+
+bool
 Path::isAbsolute() const {
   if (path.empty())
     return false;

Modified: llvm/trunk/lib/System/Win32/Path.inc
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/System/Win32/Path.inc?rev=73368&r1=73367&r2=73368&view=diff

==============================================================================
--- llvm/trunk/lib/System/Win32/Path.inc (original)
+++ llvm/trunk/lib/System/Win32/Path.inc Sun Jun 14 23:17:07 2009
@@ -125,6 +125,20 @@
   return true;
 }
 
+bool
+Path::isAbsolute(const char *NameStart, unsigned NameLen) {
+  assert(NameStart);
+  switch (NameLen) {
+  case 0:
+    return false;
+  case 1:
+  case 2:
+    return NameStart[0] == '/';
+  default:
+    return NameStart[0] == '/' || (NameStart[1] == ':' && NameStart[2] == '/');
+  }
+}
+
 bool 
 Path::isAbsolute() const {
   switch (path.length()) {