1 files changed, 63 insertions, 0 deletions
diff --git a/include/llvm/Tools/StringExtras.h b/include/llvm/Tools/StringExtras.h
new file mode 100644
index 0000000000..31dedb4248
--- /dev/null
+++ b/include/llvm/Tools/StringExtras.h
@@ -0,0 +1,63 @@
+//===-- StringExtras.h - Useful string functions -----------------*- C++ -*--=//
+//
+// This file contains some functions that are useful when dealing with strings.
+// No library is required when using these functinons.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TOOLS_STRING_EXTRAS_H
+#define LLVM_TOOLS_STRING_EXTRAS_H
+
+#include <string>
+#include "llvm/Tools/DataTypes.h"
+
+static inline string utostr(uint64_t X, bool isNeg = false) {
+  char Buffer[40];
+  char *BufPtr = Buffer+39;
+
+  *BufPtr = 0;                  // Null terminate buffer...
+  if (X == 0) *--BufPtr = '0';  // Handle special case...
+
+  while (X) {
+    *--BufPtr = '0' + (X % 10);
+    X /= 10;
+  }
+
+  if (isNeg) *--BufPtr = '-';   // Add negative sign...
+
+  return string(BufPtr);
+}
+
+static inline string itostr(int64_t X) {
+  if (X < 0) 
+    return utostr((uint64_t)-X, true);
+  else
+    return utostr((uint64_t)X);
+}
+
+
+static inline string utostr(unsigned X, bool isNeg = false) {
+  char Buffer[20];
+  char *BufPtr = Buffer+19;
+
+  *BufPtr = 0;                  // Null terminate buffer...
+  if (X == 0) *--BufPtr = '0';  // Handle special case...
+
+  while (X) {
+    *--BufPtr = '0' + (X % 10);
+    X /= 10;
+  }
+
+  if (isNeg) *--BufPtr = '-';   // Add negative sign...
+
+  return string(BufPtr);
+}
+
+static inline string itostr(int X) {
+  if (X < 0) 
+    return utostr((unsigned)-X, true);
+  else
+    return utostr((unsigned)X);
+}
+
+#endif