{"id":409,"date":"2023-02-25T10:54:12","date_gmt":"2023-02-25T02:54:12","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=409"},"modified":"2023-04-29T21:36:13","modified_gmt":"2023-04-29T13:36:13","slug":"android-ndk-basic-c-precompile-macro-definition-macro-replacement","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/02\/25\/android-ndk-basic-c-precompile-macro-definition-macro-replacement\/","title":{"rendered":"Android NDK\u57fa\u78409\uff1aC_\u9884\u7f16\u8bd1_\u5b8f\u5b9a\u4e49_\u5b8f\u66ff\u6362"},"content":{"rendered":"

include\u6307\u4ee4<\/h2>\n
#include <stdlib.h>\n#include <stdio.h>\n\n\/\/\u9884\u7f16\u8bd1\uff08\u9884\u5904\u7406\uff09\uff0c\u4e3a\u7f16\u8bd1\u505a\u51c6\u5907\u5de5\u4f5c\uff0c\u5b8c\u6210\u4ee3\u7801\u6587\u672c\u7684\u66ff\u6362\u5de5\u4f5c\n\/\/C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\include\n\/\/C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\crt\\src\n\n\/\/\u5934\u6587\u4ef6\u544a\u8bc9\u7f16\u8bd1\u5668\u6709\u8fd9\u6837\u4e00\u4e2a\u51fd\u6570\uff0c\u8fde\u63a5\u5668\u8d1f\u8d23\u627e\u5230\u8fd9\u4e2a\u51fd\u6570\u7684\u5b9e\u73b0\n\nvoid main() {\n    \/\/#include "my.txt"\n    \/\/printf("%s\\n", "I am a little boy!");\n}<\/code><\/pre>\n
<\/p>\n
my.txt<\/p>\n
printf("%s\\n", "I am a little boy!");<\/code><\/pre>\n
define\u6307\u4ee4<\/h2>\n
\u5b9a\u4e49\u6807\u793a<\/h3>\n
\/\/#ifdef __cplusplus \u6807\u8bc6\u652f\u6301C++\u8bed\u6cd5<\/code><\/pre>\n
\u9632\u6b62\u6587\u4ef6\u91cd\u590d\u5f15\u5165<\/h3>\n
A.h<\/p>\n
\/\/\u8001\u7248\u672c\uff1a\u5982\u679c\u6ca1\u6709\u5b9a\u4e49AH\uff0c\u5b9a\u4e49AH\n\/\/#ifndef AH\n\/\/#define AH\n\/\/#include "B.h"\n\/\/\n\/\/void printfA();\n\/\/\n\/\/#endif\n\n\/\/\u65b0\u7248\u672c\uff1a\u8be5\u5934\u6587\u4ef6\u53ea\u88ab\u5305\u542b\u4e00\u6b21\uff0c\u8ba9\u7f16\u8bd1\u5668\u81ea\u5b9a\u5904\u7406\u597d\u5faa\u73af\u5305\u542b\u95ee\u9898\n#pragma once\n#include "B.h"\n\nvoid printfA();<\/code><\/pre>\n
B.h<\/p>\n
\/\/#ifndef BH\n\/\/#define BH\n\/\/#include "A.h"\n\/\/\n\/\/void printfB();\n\/\/\n\/\/#endif\n\n#pragma once\n#include "A.h"\n\nvoid printfB();<\/code><\/pre>\n
main.c<\/p>\n
#include <stdlib.h>\n#include <stdio.h>\n\n#include "A.h"\n\nvoid printfA() {\n    printf("print A");\n}\n\nvoid main() {\n    printfA();\n}<\/code><\/pre>\n
\u5b9a\u4e49\u5e38\u6570\uff08\u4fbf\u4e8e\u4fee\u6539\u4e0e\u9605\u8bfb\uff09<\/h3>\n
#define MAX 100\n\/\/int MIN = 40;\n\nvoid main() {\n    int i = 90;\n    if (i < MAX) {\n        printf("\u6bd4MAX\u5c0f..");\n    }\n}<\/code><\/pre>\n
\u5b9a\u4e49\u201c\u5b8f\u51fd\u6570\u201d<\/h3>\n
void jni_read() {\n    printf("read\\n");\n}\n\nvoid jni_write() {\n    printf("write\\n");\n}\n\n\/\/NAME\u662f\u53c2\u6570\n#define jni(NAME) jni_##NAME();\n\/\/webrtc JNI\u51fd\u6570\u540d\u79f0\u5f88\u957f\uff0c\u4e5f\u662fJOW\u5b8f\u51fd\u6570\u7f29\u77ed\u51fd\u6570\u540d\u79f0\n\n\/\/\u65e5\u5fd7\u8f93\u51fa\n\/\/__VA_ARGS__\u53ef\u53d8\u53c2\u6570\n\/\/#define LOG(FORMAT,...) printf(##FORMAT, __VA_ARGS__);\n\/\/\u65e5\u5fd7\u4f1a\u6709\u7ea7\u522b\n\/\/#define LOG_I(FORMAT,...) printf("INFO:"); printf(##FORMAT, __VA_ARGS__);\n\/\/#define LOG_E(FORMAT,...) printf("ERRO:"); printf(##FORMAT, __VA_ARGS__);\n\n\/\/\u5347\u7ea7\u7248\u672c\n#define LOG(LEVEL,FORMAT,...) printf(##LEVEL); printf(##FORMAT, __VA_ARGS__);\n#define LOG_I(FORMAT,...) LOG("INFO:", ##FORMAT, __VA_ARGS__);\n#define LOG_E(FORMAT,...) LOG("ERROR:", ##FORMAT, __VA_ARGS__);\n#define LOG_W(FORMAT,...) LOG("WARN:", ##FORMAT, __VA_ARGS__);\n\n\/\/Android\n\/\/#define LOGI(FORMAT,...) __android_log_print(ANDROID_LOG_INFO, "jason", FORMAT, ##__VA_ARGS__);\n\/\/LOGI("%s","fix");\n\/\/\u66ff\u6362\n\/\/__android_log_print(ANDROID_LOG_INFO, "yezhou", "%s", "fix");<\/code><\/pre>\n
void main() {\n    jni(write); \/\/\u66ff\u6362\uff1ajni_write();\n\n    LOG_I("%s%d", "\u5927\u5c0f\uff1a", 89);\n    \/\/\u66ff\u6362\u6210\uff1aprintf("INFO:"); printf("%s%d", "\u5927\u5c0f\uff1a", 89);\n\n    getchar();\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
include\u6307\u4ee4 #include <stdlib.h> #include <stdio. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-409","post","type-post","status-publish","format-standard","hentry","category-android-ndk"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=409"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/409\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}