Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about how to use file debugging programs in Linux applications. The article is rich in content and analyzes and describes for you from a professional point of view. I hope you can get something after reading this article.

Linux, everything is a file, so in the Android system itself, it is also Linux+java, but also in the running environment of Linux.

Usually, we use printf when debugging programs.

In Android, we will use logcat. Now, let's introduce a common debugging method, debug write file debugging method.

In Android system, it is extremely inconvenient to debug a C application. In order to preserve the integrity of log, writing file debugging method can play an important role. Here is an example:

# include FILE * wirte_debug_file=NULL;// writes debug information to file void write_Debug_to_file (char * debug_log) {if (wirte_debug_file==NULL) wirte_debug_file= fopen ("debug.txt", "wt"); if (wirte_debug_file==NULL) return; fputs (debug_log,wirte_debug_file);} int main (void) {int I; char buf [100]; for (I = 0; I < 10) IDebug +) {sprintf (buf, "iwrite_Debug_to_file% d\ n", I); / / write debug information write_Debug_to_file (buf);} if (wirte_debug_file! = NULL) fclose (wirte_debug_file); return 0;}

Running result:

When we open debug.txt, we can see:

I:0

I:1

I:2

I:3

I:4

I:5

I:6

I:7

I:8

I:9

The above is the editor for you to share how to use file debugging programs in Linux applications, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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