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139 lines
3.2 KiB
C++
139 lines
3.2 KiB
C++
// $Id$
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//***************************************************************************
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//
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// File:
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// ProgramOption.C
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//
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// Purpose:
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// General representations for a program option.
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//
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// History:
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// 08/08/95 - adve - created in the dHPF compiler
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// 11/26/96 - adve - EvalOpt now returns #args consumed, or -1 for error
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// 07/15/01 - vadve - Copied to LLVM system and modified
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//
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//**************************************************************************/
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//************************** System Include Files **************************/
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string>
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//*************************** User Include Files ***************************/
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#include "llvm/Support/ProgramOption.h"
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//********************** Local Variable Definitions ************************/
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//************************ Class Implementations ***************************/
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//**************************************************************************/
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StringOption::StringOption(const char* _argString,
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const char* _helpMesg,
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const char* _initValue,
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bool _append)
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: ProgramOption(_argString, _helpMesg),
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value(_initValue),
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append(_append)
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{}
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int
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StringOption::EvalOpt(const char* optarg)
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{
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if (optarg == (char*) NULL)
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return -1; // flag the error
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if (this->append)
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value += optarg;
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else
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value = optarg;
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optionSpecified = true;
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return 1; // one additional argument consumed
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}
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//**************************************************************************/
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FlagOption::FlagOption(const char* _argString,
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const char* _helpMesg,
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bool _initValue)
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: ProgramOption(_argString, _helpMesg, 0),
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value(_initValue)
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{}
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int
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FlagOption::EvalOpt(const char* optarg)
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{
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if (strcmp(optarg, "0") == 0) {
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value = false;
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return 1; // one additional argument consumed
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}
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else {
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value = true;
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return 0; // zero ... consumed
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}
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}
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//**************************************************************************/
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RealValuedOption::RealValuedOption(const char* _argString,
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const char* _helpMesg,
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double _initValue)
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: ProgramOption(_argString, _helpMesg),
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value(_initValue)
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{}
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int
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RealValuedOption::EvalOpt(const char* optarg)
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{
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if (optarg == (char*) NULL)
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return -1;
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char* lastCharScanned = NULL;
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value = strtod(optarg, &lastCharScanned);
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if (! (*lastCharScanned == '\0')) // look for incorrect or partially
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return -1; // correct numerical argument
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optionSpecified = true;
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return 1;
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}
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char*
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RealValuedOption::GetTextValue() const
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{
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char buffer[40];
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sprintf(buffer, "%f", value);
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return strdup(buffer);
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}
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//**************************************************************************/
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IntegerValuedOption::IntegerValuedOption(const char* _argString,
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const char* _helpMesg,
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int _initValue)
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: RealValuedOption(_argString, _helpMesg, (double) _initValue)
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{}
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int
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IntegerValuedOption::Value() const
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{
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double realValue = RealValuedOption::Value();
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assert(realValue == (int) realValue);
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return (int) realValue;
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}
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char*
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IntegerValuedOption::GetTextValue() const
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{
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char buffer[40];
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sprintf(buffer, "%d", Value());
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return strdup(buffer);
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}
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//**************************************************************************/
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