[c]
\n#include <stdio.h>
\n\/\/Example to show how to pass
\n\/\/functions as parameters in C. <\/p>\n
\/\/simple function that returns the sum of two ints
\nint sum(int i, int j) {
\n return i+j;
\n}<\/p>\n
\/\/simple function that prints a char*
\nvoid printSomething(char* something) {
\n printf("%sn",something);
\n}<\/p>\n
\/\/function that takes
\n\/\/ 2 ints
\n\/\/ 1 char*
\n\/\/ one function that returns an int and takes two ints
\n\/\/ one function that takes a char* returns nothing
\nvoid functionThatTakesOtherFunctions(int a,
\n int b,
\n char* name,
\n int (functionA) (int,int),
\n void (functionB) (char*)) {
\n printf("Function A: %dn",functionA(a,b));
\n functionB(name);
\n}<\/p>\n
int main(void) {
\n \/\/we pass the first two functions as parameters
\n functionThatTakesOtherFunctions(3,4,
\n "John Doe",
\n sum,
\n printSomething);
\n return 0;
\n}
\n[\/c]<\/p>\n
This worked fine on my gcc compiler (MacOSX 10.5), no need to even use * or & operators when defining the parameters or when passing the functions as parameters.<\/p>\n","protected":false},"excerpt":{"rendered":"
[c] #include <stdio.h> \/\/Example to show how to pass \/\/functions as parameters in C. \/\/simple function that returns the sum of two ints int sum(int i, int j) { return i+j; } \/\/simple function that prints a char* void printSomething(char* something) { printf("%sn",something); } \/\/function that takes \/\/ 2 ints \/\/ 1 char* \/\/ one […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[15],"tags":[],"class_list":["post-2029","post","type-post","status-publish","format-standard","hentry","category-code"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5Unzf-wJ","jetpack-related-posts":[{"id":799,"url":"https:\/\/www.gubatron.com\/blog\/function-callbacks-in-c\/","url_meta":{"origin":2029,"position":0},"title":"Function callbacks in C","author":"gubatron","date":"May 2, 2008","format":false,"excerpt":"Ever since I started programming in Javascript, and doing asynchronous function calls, I've found myself to be addicted to passing functions as parameters. I do it a lot in python and php, it's very easy to do this on all these dynamic typed languages. I never had this concept of\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1269,"url":"https:\/\/www.gubatron.com\/blog\/how-to-make-a-quick-dirty-hexviewer-updated\/","url_meta":{"origin":2029,"position":1},"title":"How to make a Quick & Dirty HexViewer – Updated","author":"gubatron","date":"April 20, 2009","format":false,"excerpt":"After I received comments from ispak on Flickr I made a few fixes. ispak pointed out that it was a bad idea reading one byte at the time, also I had a gay ass try\/catch that didn't catch any exception :p So now I read 16 byte chunks, and I\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"HexViewer - r2","src":"https:\/\/i0.wp.com\/farm4.static.flickr.com\/3486\/3458529439_31357e0afe_o.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/farm4.static.flickr.com\/3486\/3458529439_31357e0afe_o.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/farm4.static.flickr.com\/3486\/3458529439_31357e0afe_o.png?resize=525%2C300 1.5x"},"classes":[]},{"id":3386,"url":"https:\/\/www.gubatron.com\/blog\/how-to-make-a-foreach-function-in-javascript\/","url_meta":{"origin":2029,"position":2},"title":"How to make a “foreach” function in JavaScript","author":"gubatron","date":"April 4, 2015","format":false,"excerpt":"I thought this would be a simple exercise in case of having to interview someone for a JavaScript position. \"How would you make your own 'foreach' in JavaScript\" I came up with the following solution: \/\/ \/\/ collection: A list of objects. \/\/ onElementIterationCallback: The function to be called on\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2047,"url":"https:\/\/www.gubatron.com\/blog\/map-function-in-java\/","url_meta":{"origin":2029,"position":3},"title":"Map function in Java","author":"gubatron","date":"August 31, 2010","format":false,"excerpt":"I read on some email signature something along the lines of: \"If I had a dollar for every for(int i=0; i < size; i++) { ... } I've written I'd be rich\" After coding on Android and learning about some of the tips for performance, like \"With an ArrayList, a\u2026","rel":"","context":"In "Code"","block_context":{"text":"Code","link":"https:\/\/www.gubatron.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3616,"url":"https:\/\/www.gubatron.com\/blog\/codejava-argb_8888-pixel-abstraction\/","url_meta":{"origin":2029,"position":4},"title":"[CODE\/JAVA] ARGB_8888 Pixel Abstraction","author":"gubatron","date":"December 4, 2016","format":false,"excerpt":"This is one of the ways you can decode Pixel colors out of the integers you get from Android Pixels. 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