c - fopen / fgets using char* instead of FILE*, why does this work? -

-

i noticed had used char* variable instead of file* variable in code when using fopen , fgets, code works. wondering why is? section of code follows. 

... char* filepath = ac->filepath; char* line = malloc(sizeof(char) * max_char_per_line) ; filepath = fopen(filepath, "r"); // assigning result char*, not file* if (filepath == null) {     printf ("\n[%s:%d] - error opening file '%s'", __file__, __line__, filepath);     printf ("\n\n");     exit (1); }  while ((fgets(line, max_char_per_line, filepath) != null)) { ...

both char* , file* store memory address. c has weak typing (edit: misunderstanding on part, see comments below) lets assign pointers without worrying type point to.

fopen returns address of file object , store address somewhere (in case in char*). when use address in fgets still has address of file object work expected.


Comments

Post a Comment

Popular posts from this blog

mod rewrite - Using "?" when rewriting the URL -

-
i have been researching weeks looking how rewritting file/directory complementary "?" or "question mark" what need: http://mydomain.com/demo01.php to like: http://mydomain.com/?theme=jerus theme > simple directory need use websites products(in case themes) jerus > name of theme extra info: i plan on rewritting every url individually refrain wildcard varibles.** wouldn't easy instead of doing url rewriting put php in directory called theme , name index.php? http://mydomain.com/theme/?t=jerus but if you're re-writing urls make rule acutally make route this: http://mydomain.com/theme/jerus/ which waaaay prettier see question: using clean urls in restful api
Read more

.htaccess: Transfer name to index.php if not directory public -

-
i have piece of code: options followsymlinks <ifmodule mod_rewrite.c> rewriteengine on rewritecond %{request_filename} !-f rewritecond %{request_filename} !-d rewritecond %{request_filename} !-l rewriterule ^(.*)$ index.php?url=$1 [l] </ifmodule> <ifmodule !mod_rewrite.c> errordocument 404 /index.php </ifmodule> i don't know how allow directory name "public" inside folder .htaccess, other names dir should transfered index.php. how that? add rewritecond exclude public directory rewritecond %{request_filename} !-f rewritecond %{request_filename} !-d rewritecond %{request_filename} !-l rewritecond %{request_uri} ^/public(/.*)?$ rewriterule ^(.*)$ index.php?url=$1 [l] now, redirection work /public directories only. if want url have rest of path that's below public url=subfolder/page.php /public/subfolder/page.php use rewritecond %{request_filename} !-f rewritecond %{request_filename} !-d rewrit...
Read more

Admob integration with pygame in android -

-
hello curious know solution integrating admob app written in pygame subset android. have tried below things did' t work me :( still nothing working me may there no way :( try 1: followed google https://developers.google.com/mobile-ads-sdk/docs/admob/fundamentals#android solution has no code change build.xml modification didt works me :( try 2: tried below solutio also. http://www.michenux.net/android-admob-tutorial-461.html did't work me :( try 3: tried hack pythonactivity.java. getting below related errors. have googleadmobadssdk-6.4.1.jar in \pgs4a-0.9.4\libs path still below kind of error. below code: protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); //vrbilgi setcontentview(r_layout_main); // setcontentview(r.layout.main); // create adview // adview = new adview(this, adsize.banner, my_ad_unit_id); adview = new adview(this, adsize.banner,"a15...
Read more