63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
//===-- StringConvert.cpp -------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include <cstdlib>
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#include "StringConvert.h"
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namespace StringConvert {
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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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} // namespace StringConvert
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