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//===-- StringExtras.h - Useful string functions -----------------*- C++ -*--=//
//
// This file contains some functions that are useful when dealing with strings.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_STRING_EXTRAS_H
#define LLVM_TOOLS_STRING_EXTRAS_H
#include <string>
#include <stdio.h>
#include "Support/DataTypes.h"
class ConstPoolArray;
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);
}
static inline string ftostr(double V) {
char Buffer[200];
snprintf(Buffer, 200, "%e", V);
return Buffer;
}
static inline void
printIndent(unsigned int indent, ostream& os=cout, const char* const istr=" ")
{
for (unsigned i=0; i < indent; i++)
os << istr;
}
// Can we treat the specified array as a string? Only if it is an array of
// ubytes or non-negative sbytes.
//
bool isStringCompatible(ConstPoolArray *CPA);
// getAsCString - Return the specified array as a C compatible string, only if
// the predicate isStringCompatible is true.
//
string getAsCString(ConstPoolArray *CPA);
#endif
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