llvm-6502/include/llvm/Tools/StringExtras.h
Chris Lattner 009505452b Initial revision
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-06 20:29:01 +00:00

64 lines
1.4 KiB
C++

//===-- 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