allwpilib/wpiutil/src/main/native/include/wpi/NativeFormatting.h

//===- NativeFormatting.h - Low level formatting helpers ---------*- C++-*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef WPIUTIL_WPI_NATIVE_FORMATTING_H
#define WPIUTIL_WPI_NATIVE_FORMATTING_H

#include "wpi/optional.h"
#include "wpi/raw_ostream.h"

#include <cstdint>

namespace wpi {
enum class FloatStyle { Exponent, ExponentUpper, Fixed, Percent };
enum class IntegerStyle {
  Integer,
  Number,
};
enum class HexPrintStyle { Upper, Lower, PrefixUpper, PrefixLower };

size_t getDefaultPrecision(FloatStyle Style);

bool isPrefixedHexStyle(HexPrintStyle S);

void write_integer(raw_ostream &S, unsigned int N, size_t MinDigits,
                   IntegerStyle Style);
void write_integer(raw_ostream &S, int N, size_t MinDigits, IntegerStyle Style);
void write_integer(raw_ostream &S, unsigned long N, size_t MinDigits,
                   IntegerStyle Style);
void write_integer(raw_ostream &S, long N, size_t MinDigits,
                   IntegerStyle Style);
void write_integer(raw_ostream &S, unsigned long long N, size_t MinDigits,
                   IntegerStyle Style);
void write_integer(raw_ostream &S, long long N, size_t MinDigits,
                   IntegerStyle Style);

void write_hex(raw_ostream &S, uint64_t N, HexPrintStyle Style,
               optional<size_t> Width = nullopt);
void write_double(raw_ostream &S, double D, FloatStyle Style,
                  optional<size_t> Precision = nullopt);
}

#endif