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path: root/source/Host/common/StringConvert.cpp
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//===-- StringConvert.cpp ---------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// C Includes
#include <stdlib.h>

// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Host/StringConvert.h"

namespace lldb_private {

namespace StringConvert {

int32_t
ToSInt32 (const char *s, int32_t fail_value, int base, bool *success_ptr)
{
    if (s && s[0])
    {
        char *end = nullptr;
        const long sval = ::strtol (s, &end, base);
        if (*end == '\0')
        {
            if (success_ptr)
                *success_ptr = ((sval <= INT32_MAX) && (sval >= INT32_MIN));
            return (int32_t)sval; // All characters were used, return the result
        }
    }
    if (success_ptr) *success_ptr = false;
    return fail_value;
}

uint32_t
ToUInt32 (const char *s, uint32_t fail_value, int base, bool *success_ptr)
{
    if (s && s[0])
    {
        char *end = nullptr;
        const unsigned long uval = ::strtoul (s, &end, base);
        if (*end == '\0')
        {
            if (success_ptr)
                *success_ptr = (uval <= UINT32_MAX);
            return (uint32_t)uval; // All characters were used, return the result
        }
    }
    if (success_ptr) *success_ptr = false;
    return fail_value;
}

int64_t
ToSInt64 (const char *s, int64_t fail_value, int base, bool *success_ptr)
{
    if (s && s[0])
    {
        char *end = nullptr;
        int64_t uval = ::strtoll (s, &end, base);
        if (*end == '\0')
        {
            if (success_ptr) *success_ptr = true;
            return uval; // All characters were used, return the result
        }
    }
    if (success_ptr) *success_ptr = false;
    return fail_value;
}

uint64_t
ToUInt64 (const char *s, uint64_t fail_value, int base, bool *success_ptr)
{
    if (s && s[0])
    {
        char *end = nullptr;
        uint64_t uval = ::strtoull (s, &end, base);
        if (*end == '\0')
        {
            if (success_ptr) *success_ptr = true;
            return uval; // All characters were used, return the result
        }
    }
    if (success_ptr) *success_ptr = false;
    return fail_value;
}

}
}