forked from OSchip/llvm-project
101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
//===-- StringConvert.cpp ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// C Includes
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#include <stdlib.h>
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Host/StringConvert.h"
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namespace lldb_private {
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namespace StringConvert {
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int32_t ToSInt32(const char *s, int32_t fail_value, int base,
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bool *success_ptr) {
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if (s && s[0]) {
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char *end = nullptr;
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const long sval = ::strtol(s, &end, base);
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if (*end == '\0') {
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if (success_ptr)
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*success_ptr = ((sval <= INT32_MAX) && (sval >= INT32_MIN));
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return (int32_t)sval; // All characters were used, return the result
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}
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}
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if (success_ptr)
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*success_ptr = false;
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return fail_value;
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}
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uint32_t ToUInt32(const char *s, uint32_t fail_value, int base,
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bool *success_ptr) {
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if (s && s[0]) {
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char *end = nullptr;
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const unsigned long uval = ::strtoul(s, &end, base);
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if (*end == '\0') {
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if (success_ptr)
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*success_ptr = (uval <= UINT32_MAX);
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return (uint32_t)uval; // All characters were used, return the result
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}
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}
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if (success_ptr)
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*success_ptr = false;
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return fail_value;
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}
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int64_t ToSInt64(const char *s, int64_t fail_value, int base,
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bool *success_ptr) {
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if (s && s[0]) {
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char *end = nullptr;
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int64_t uval = ::strtoll(s, &end, base);
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if (*end == '\0') {
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if (success_ptr)
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*success_ptr = true;
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return uval; // All characters were used, return the result
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}
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}
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if (success_ptr)
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*success_ptr = false;
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return fail_value;
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}
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uint64_t ToUInt64(const char *s, uint64_t fail_value, int base,
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bool *success_ptr) {
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if (s && s[0]) {
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char *end = nullptr;
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uint64_t uval = ::strtoull(s, &end, base);
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if (*end == '\0') {
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if (success_ptr)
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*success_ptr = true;
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return uval; // All characters were used, return the result
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}
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}
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if (success_ptr)
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*success_ptr = false;
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return fail_value;
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}
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double ToDouble(const char *s, double fail_value, bool *success_ptr) {
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if (s && s[0]) {
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char *end = nullptr;
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double val = strtod(s, &end);
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if (*end == '\0') {
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if (success_ptr)
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*success_ptr = true;
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return val; // All characters were used, return the result
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}
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}
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if (success_ptr)
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*success_ptr = false;
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return fail_value;
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}
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}
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}
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