[llvm-commits] CVS: llvm/lib/System/Path.cpp
Reid Spencer
reid at x10sys.com
Sun Nov 14 14:06:09 PST 2004
Changes in directory llvm/lib/System:
Path.cpp updated: 1.6 -> 1.7
---
Log message:
Implement IdentifyFileType function
---
Diffs of the changes: (+27 -0)
Index: llvm/lib/System/Path.cpp
diff -u llvm/lib/System/Path.cpp:1.6 llvm/lib/System/Path.cpp:1.7
--- llvm/lib/System/Path.cpp:1.6 Fri Sep 10 23:59:30 2004
+++ llvm/lib/System/Path.cpp Sun Nov 14 16:05:32 2004
@@ -21,6 +21,33 @@
//=== independent code.
//===----------------------------------------------------------------------===//
+LLVMFileType
+IdentifyFileType(const char*magic, unsigned length) {
+ assert(magic && "Invalid magic number string");
+ assert(length >=4 && "Invalid magic number length");
+ switch (magic[0]) {
+ case 'l':
+ if (magic[1] == 'l' && magic[2] == 'v') {
+ if (magic[3] == 'c')
+ return CompressedBytecodeFileType;
+ else if (magic[3] == 'm')
+ return BytecodeFileType;
+ }
+ break;
+
+ case '!':
+ if (length >= 8) {
+ if (memcmp(magic,"!<arch>\n",8) == 0)
+ return ArchiveFileType;
+ }
+ break;
+
+ default:
+ break;
+ }
+ return UnknownFileType;
+}
+
}
// Include the truly platform-specific parts of this class.
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