{"id":8828,"date":"2023-02-08T00:35:02","date_gmt":"2023-02-07T16:35:02","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=8828"},"modified":"2024-05-05T14:18:24","modified_gmt":"2024-05-05T06:18:24","slug":"c-%e8%af%ad%e8%a8%80%e5%92%8c-c-%e7%9a%84-bool-%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=8828","title":{"rendered":"C \u8bed\u8a00\u548c C++ \u7684 bool \u7c7b\u578b"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.iyatt.com\/?p=8828\/#%E7%8E%AF%E5%A2%83\" >\u73af\u5883<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.iyatt.com\/?p=8828\/#%E6%AD%A3%E6%96%87\" >\u6b63\u6587<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E7%8E%AF%E5%A2%83\"><\/span>\u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u7cfb\u7edf\uff1aDebian 11 arm64<br \/>\n\u7f16\u8bd1\uff1a<\/p>\n<ul>\n<li>C \u8bed\u8a00\uff1a\u7f16\u8bd1\u5668 gcc 10.2.1\uff1b\u7f16\u8bd1\u6807\u51c6 C17\uff1b\u53c2\u6570\uff1a-std=c17 -no-pie -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Werror=format-security -Wextra -pedantic -Wimplicit-fallthrough -Wsequence-point -Wswitch-unreachable -Wswitch-enum -Wstringop-truncation -Wbool-compare -Wtautological-compare -Wfloat-equal -Wshadow=global -Wpointer-arith -Wpointer-compare -Wcast-align -Wcast-qual -Wwrite-strings -Wdangling-else -Wlogical-op -Wconversion -g -O0<\/li>\n<li>C++\uff1a\u7f16\u8bd1\u5668 g++ 10.2.1\uff1b\u7f16\u8bd1\u6807\u51c6 C++20\uff1b\u53c2\u6570\uff1a-std=c++20 -no-pie -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Werror=format-security -Wextra -pedantic -Wimplicit-fallthrough -Wsequence-point -Wswitch-unreachable -Wswitch-enum -Wstringop-truncation -Wbool-compare -Wtautological-compare -Wfloat-equal -Wshadow=global -Wpointer-arith -Wpointer-compare -Wcast-align -Wcast-qual -Wwrite-strings -Wdangling-else -Wlogical-op -Wconversion -g -O0<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%E6%AD%A3%E6%96%87\"><\/span>\u6b63\u6587<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C99 \u6807\u51c6\u4e2d\u589e\u52a0\u4e86 _Bool \u7c7b\u578b\uff0c\u5e76\u5728 C23 \u4e2d\u79fb\u9664\uff08\u89c1\u4e0b\u56fe\uff09\u3002\u4e0d\u8fc7\u6211\u8fd9\u91cc\u4f7f\u7528\u7684 gcc \u7f16\u8bd1\u5668\u7248\u672c\u76ee\u524d\u8fd8\u4e0d\u652f\u6301\u6700\u65b0\u7684 C23\uff0c\u8fd9\u91cc\u6ca1\u6cd5\u6d4b\u8bd5\u3002<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/02\/image-1675785215025.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 543px; --smush-placeholder-aspect-ratio: 543\/207;\" \/><br \/>\nC \u8bed\u8a00\u4e2d\u5982\u679c\u5305\u542b\u4e86 stdbool.h\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u4f7f\u7528 bool \u7c7b\u578b\uff08\u770b\u4e0a\u9762\u7684\u8868\uff0cC23 \u5e94\u8be5\u5c31\u662f\u7528 bool \u5b8c\u5168\u66ff\u4ee3 _Bool\uff09\uff0c\u53e6\u5916\u53ef\u4ee5\u4f7f\u7528 true \u4ee3\u8868\u771f\uff0cfalse \u4ee3\u8868\u5047<br \/>\n\u5173\u4e8e\u6211\u8fd9\u91cc\u7684 gcc \u7f16\u8bd1\u5668\u8fd9\u90e8\u5206\u7684\u5b9a\u4e49\u4e3a<br \/>\n<img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/02\/image-1675785473135.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 452px; --smush-placeholder-aspect-ratio: 452\/266;\" \/><br \/>\n\u770b stdbool.h \u4e2d\u7684\u5b9a\u4e49\uff0ctrue \u5c31\u662f 1\uff0c\u4f46\u662f\u5b9e\u9645\u4f7f\u7528\u4e2d\u975e\u96f6\u6570\u90fd\u662f\u89c6\u4e3a true\u3002<\/p>\n<pre><code class=\"language-c\">#include &lt;stdio.h&gt;\n#include &lt;stdbool.h&gt;\n\nvoid printBool(bool isTrue)\n{\n    if (isTrue)\n    {\n        printf(&quot;\u771f\\n&quot;);\n    }\n    else\n    {\n        printf(&quot;\u5047\\n&quot;);\n    }\n}\n\nint main()\n{\n    printf(&quot;bool \u5927\u5c0f %zd\\n&quot;, sizeof(bool));\n\n    bool a = 3;\n    printBool(a);\n\n    bool b = 2;\n    printBool(b);\n\n    bool c = 0;\n    printBool(c);\n\n    bool d = true;\n    printBool(d);\n\n    bool e = false;\n    printBool(e);\n\n    _Bool f = false;\n    printBool(f);\n\n    return 0;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/02\/image-1675785744049.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 162px; --smush-placeholder-aspect-ratio: 162\/134;\" \/><\/p>\n<p>\u800c\u5728 C++ \u4e2d\uff0c\u4f7f\u7528 bool \u4e0d\u9700\u8981\u5305\u542b\u7279\u5b9a\u5934\u6587\u4ef6\uff0c\u8fd9\u4e2a\u5e94\u8be5\u662f\u76f4\u63a5\u4f5c\u4e3a\u57fa\u672c\u7c7b\u578b\u5b9e\u73b0\u7684\u3002<\/p>\n<pre><code class=\"language-cpp\">#include &lt;iostream&gt;\n\nvoid printBool(bool isTrue)\n{\n    if (isTrue)\n    {\n        std::cout &lt;&lt; &quot;\u771f&quot; &lt;&lt; std::endl;\n    }\n    else\n    {\n        std::cout &lt;&lt; &quot;\u5047&quot; &lt;&lt; std::endl;\n    }\n}\n\nint main()\n{\n    std::cout &lt;&lt; &quot;bool \u5927\u5c0f &quot; &lt;&lt; sizeof(bool) &lt;&lt; std::endl;\n\n    bool a = 3;\n    printBool(a);\n\n    bool b = 2;\n    printBool(b);\n\n    bool c = 0;\n    printBool(c);\n\n    bool d = true;\n    printBool(d);\n\n    bool e = false;\n    printBool(e);\n\n    return 0;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/02\/image-1675786113482.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 121px; --smush-placeholder-aspect-ratio: 121\/118;\" \/><\/p>\n<p>\u5728 C \u8bed\u8a00\u548c C++ \u4e2d\uff0c\u8fd9\u91cc\u770b\u5230\u7684 bool \u7c7b\u578b\u5927\u5c0f\u90fd\u662f 1 \u5b57\u8282\uff0c\u548c char \u4e00\u6837\u3002\u800c\u4e14\u524d\u9762\u7684\u8d4b\u503c\u64cd\u4f5c\u65f6\u7ed9\u4e86 0 \u548c 1 \u4ee5\u5916\u7684\u6570\u5b57\uff0c\u7f16\u8bd1\u7684\u65f6\u5019\u4e5f\u6ca1\u6709\u9519\u8bef\u6216\u8b66\u544a\u3002<br \/>\n\u4e8e\u662f\u6211\u5c1d\u8bd5\u4e86\u7ed9 bool \u7c7b\u578b\u81ea\u589e\u548c\u81ea\u51cf<\/p>\n<p>C \u8bed\u8a00<\/p>\n<pre><code class=\"language-c\">#include &lt;stdbool.h&gt;\n\nint main()\n{\n    bool a = true;\n    ++a;\n    --a;\n\n    return 0;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/02\/image-1675787327261.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 591px; --smush-placeholder-aspect-ratio: 591\/240;\" \/><\/p>\n<p>\u7531 -Wbool-operation \u53c2\u6570\u7ed9\u51fa\u4e86\u8b66\u544a\uff0c\u4f46\u662f\u6b63\u5e38\u7f16\u8bd1<\/p>\n<p>C++<\/p>\n<pre><code class=\"language-cpp\">int main()\n{\n    bool a = true;\n    --a;\n    ++a;\n\n    return 0;\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2023\/02\/image-1675787529983.png\" alt=\"file\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" style=\"--smush-placeholder-width: 640px; --smush-placeholder-aspect-ratio: 640\/225;\" \/><\/p>\n<p>\u800c\u5728 C++ \u4e2d\u5219\u76f4\u63a5\u5bf9\u8fd9\u79cd\u64cd\u4f5c\u62a5\u9519\uff0c\u5176\u4e2d\u53c8\u6709\u6240\u533a\u522b\uff0c\u81ea\u51cf\u662f\u76f4\u63a5\u62a5\u9519\u7684\uff0c\u800c\u81ea\u589e\u6307\u51fa\u4e86\u662f C++17\uff0c\u90a3\u5e94\u8be5\u5c31\u662f\u4ece C++17 \u6807\u51c6\u5f00\u59cb\u7981\u6b62\u8fd9\u79cd\u7528\u6cd5\u7684<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u73af\u5883 \u7cfb\u7edf\uff1aDebian 11 arm64 \u7f16\u8bd1\uff1a C \u8bed\u8a00\uff1a\u7f16\u8bd1\u5668 gcc 10.2.1\uff1b\u7f16\u8bd1\u6807\u51c6 C17\uff1b [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1,589],"tags":[],"class_list":["post-8828","post","type-post","status-publish","format-standard","hentry","category-all","category-c-c"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/8828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8828"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/8828\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}