68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
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/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2023 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* This does not match the standard cppchek test code,
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* because I haven't figured that out yet.
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* This code does compile and run, and does demonstrate
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* the issues that the threadsafety.py addon is supposed to find.
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* It does not use threads !
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*/
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#include <stdio.h>
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#include <time.h>
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#include <string.h>
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void threadsafety_static()
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{
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// cppcheck-suppress threadsafety-threadsafety
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static unsigned int nCount = 0;
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nCount++;
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printf("%d\n", nCount);
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}
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void threadsafety_call()
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{
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time_t now = time(nullptr);
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// cppcheck-suppress threadsafety-unsafe-call
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printf("%s\n", ctime(&now));
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}
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// cppcheck --addon=threadsafety
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// should *not* find any problems with this function.
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void threadsafety_safecall()
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{
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char haystack[] = "alphabet";
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char needle[] = "Alph";
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char* found = strcasestr(haystack, needle);
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printf("%s %sin %s\n", needle, found ? "" : "not ", haystack);
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}
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int main() {
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threadsafety_static();
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threadsafety_call();
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threadsafety_safecall();
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threadsafety_static();
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return 0;
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}
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