Problem 44808. Make an anonymous function that has variable output

Solution 1685833

Submitted on 3 Dec 2018 by Peng Liu

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3 Comments

3 Comments

bainhome on 7 Dec 2018

Wow...never thought this one also do the trick. Awesome!

li haitao on 18 Dec 2018

Why does str2num work for anonymous function?

Peng Liu on 18 Dec 2018

Don't be confused by the name "str2num", which might give you a wrong impression that this function only works for str to number conversion. In fact, it is more powerful because it supports evaluation of any valid string or character represented MATLAB expressions in much the same way eval does. The underlying implementation of str2num is indeed based on eval. Check the documentation and source file for more details.

Test Suite

Test	Status	Code Input and Output
1	Pass	fid = fopen('anonymous.m'); st = regexprep(char(fread(fid)'), 'function', 'error(''No fancy functions!''); %','ignorecase',2); fclose(fid); fid = fopen('anonymous.m' , 'w'); fwrite(fid,st); fclose(fid);
2	Pass	f = anonymous; a = f(1); assert(a==1);
3	Pass	f = anonymous; a = f(1,2); assert(a==1); [a,b] = f(3,5); assert(a==3&b==5);
4	Pass	f = anonymous; a = f(1,2); assert(a==1); [a,b] = f(3,'56'); assert(a==3&isequal(b,'56'));

Problem 44808. Make an anonymous function that has variable output

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Problem 44808. Make an anonymous function that has variable output

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