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Utility class to format integer values.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33905 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2009-11-05 17:39:09 +00:00
parent c9d768d913
commit 7d4508b161
2 changed files with 104 additions and 0 deletions
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72
src/apps/debugger/util/IntegerFormatter.cpp Normal file
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/*
* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#include "IntegerFormatter.h"
#include <stdio.h>
#include <TypeConstants.h>
/*static*/ bool
IntegerFormatter::FormatValue(const BVariant& value, integer_format format,
char* buffer, size_t bufferSize)
{
bool isSigned;
if (!value.IsInteger(&isSigned))
return false;
if (format == INTEGER_FORMAT_DEFAULT)
format = isSigned ? INTEGER_FORMAT_SIGNED : INTEGER_FORMAT_UNSIGNED;
if (format == INTEGER_FORMAT_HEX_DEFAULT) {
switch (value.Type()) {
case B_INT8_TYPE:
case B_UINT8_TYPE:
format = INTEGER_FORMAT_HEX_8;
break;
case B_INT16_TYPE:
case B_UINT16_TYPE:
format = INTEGER_FORMAT_HEX_16;
break;
case B_INT32_TYPE:
case B_UINT32_TYPE:
format = INTEGER_FORMAT_HEX_32;
break;
case B_INT64_TYPE:
case B_UINT64_TYPE:
default:
format = INTEGER_FORMAT_HEX_64;
break;
}
}
// format the value
switch (format) {
case INTEGER_FORMAT_SIGNED:
snprintf(buffer, bufferSize, "%lld", value.ToInt64());
break;
case INTEGER_FORMAT_UNSIGNED:
snprintf(buffer, bufferSize, "%llu", value.ToUInt64());
break;
case INTEGER_FORMAT_HEX_8:
snprintf(buffer, bufferSize, "%#x", (uint8)value.ToUInt64());
break;
case INTEGER_FORMAT_HEX_16:
snprintf(buffer, bufferSize, "%#x", (uint16)value.ToUInt64());
break;
case INTEGER_FORMAT_HEX_32:
snprintf(buffer, bufferSize, "%#lx", (uint32)value.ToUInt64());
break;
case INTEGER_FORMAT_HEX_64:
case INTEGER_FORMAT_HEX_DEFAULT:
default:
snprintf(buffer, bufferSize, "%#llx", value.ToUInt64());
break;
}
return true;
}

32
src/apps/debugger/util/IntegerFormatter.h Normal file
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/*
* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef INTEGER_FORMATTER_H
#define INTEGER_FORMATTER_H
#include <Variant.h>
enum integer_format {
INTEGER_FORMAT_DEFAULT = 0,
INTEGER_FORMAT_SIGNED = 1,
INTEGER_FORMAT_UNSIGNED = 2,
INTEGER_FORMAT_HEX_DEFAULT = 3,
INTEGER_FORMAT_HEX_8 = 8,
INTEGER_FORMAT_HEX_16 = 16,
INTEGER_FORMAT_HEX_32 = 32,
INTEGER_FORMAT_HEX_64 = 64
};
class IntegerFormatter {
public:
static bool FormatValue(const BVariant& value,
integer_format format, char* buffer,
size_t bufferSize);
};
#endif // INTEGER_FORMATTER_H