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How to print a space between two strings using strcat() function in c language?
You can do something like this.
strcat(string1, " ");
strcat(string1, string2);
or, just in one line.
strcat(strcat(string1, " "),string2)
Both the snippets are actually same!
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Is the any more use of *, but for pointers *p and multiplication a*b ? If yes what usage it has?
Yes, it's part of multi-line comment syntax /*insert comment here*/
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I want to have some information about (#include)
in the beginning of my C program.
What does this library do?I have search before and found nothing.....
#include is a preprocessor directive, not a library. You can read below Wikipedia page about it.
https://en.wikipedia.org/wiki/Include_directive
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I just found a short code here, which would detect blank lines in a file. It used fgets() function in C library.
I wonder if character functions are better suited for files which have tabs, and perhaps continous spaces.
My qustion is what is the best way to parse a file for blank lines?
You can also use scanf(" %[^\n]s",string); in order to read spaces but fgets is best solution for your case.
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I'd love to create some part dynamically. Would it be possible to use offsetof with string as a second argument? Something like:
offsetof( tic, "close.v");
Or can I convert char to member anyhow?
The offsetof construct is a compile time operation. It can't be used with anything that is generated dynamically.
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In C/C++, is there a way to write my function so that I can use format codes to print information easier? The function draws text to the screen with SDL, so I can't pass in a C++ string; it has to be a char array.
Firstly, you can convert a c++ string to a char array using myString.c_str().
Also, you can use sprintf() with format codes to produce a string. Then you can draw that string using SDL. For example:
char myString[1024];
sprintf(myString, "Hello my name is %s", "foo");
draw_using_SDL(myString);