When it comes to editing text, the concept of copy and paste is an old one: You select a chunk of text, choose its new location, then paste in the text. The surrounding text jiggles around to make room. Neat and tidy.
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\nThis month’s exercise involves programming that copy-and-paste operation. It involves working with strings and pointers, which are closely related so if you are confuzzled by one then you’ll find yourself cheerfully confuzzeld by the other.<\/p>\n
The task is to take this string:<\/p>\n
And insert the text (Text coloring on this page is for illustrative purposes.)<\/p>\n As with most programming puzzles, multiple solutions exist. This month I want you to come up with two of them.<\/p>\n Yes, I am<\/em> cruel.<\/p>\n The first solution is the cheat: Don’t create the string, merely display it. Have the program output the text The second solution is to create the string in memory, then display the whole thing.<\/p>\n Even with these two tasks, you’ll find many potential solutions. Some of them involve using pointers, some involve using the various As usual, please attempt the exercises on your own before you look at my suggested solutions, linked to below.<\/p>\n Solution 1: Display the string<\/a><\/p>\n Solution 2: Build the string, then display it<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Inserting one string into another is easy with copy-and-paste, not so easy when you have to code the operation in C. Continue reading That's the biggest spider I've ever seen!<\/code><\/p>\n, nastiest<\/span><\/code> after the T in biggest<\/code> so that the resulting string looks like this:<\/p>\nThat's the biggest, nastiest<\/span> spider I've ever seen!<\/code><\/p>\nThat's the biggest, nastiest spider I've ever seen!<\/code> one chunk at a time. That’s the easy way to solve the problem.<\/p>\nstrings.h<\/code> functions, others involves insane solutions no one has yet thought of.<\/p>\n