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char* linker

General and Gameplay Programming Programming

Started by programering April 01, 2003 05:10 AM

10 comments, last by programering 21 years, 1 month ago

programering

105

Author

April 01, 2003 05:10 AM

I have tried to link together three strings(char *), but it didn''t work when I wrote like this: char *path = "path/"; char *name = "file"; char *format = ".dat"; char *adress; adress = path + name + format; // or when I did like this: #define STRING_LINKER(a,b,c) ((a) ## (b) ## (c)) adress = STRING_LINKER(path,name,format); How shall I do it, is there any function that handles this? Anton Karlsson Klingis Entertainment Games with silly humor

Drazgal

368

April 01, 2003 05:12 AM

strcat and strcpy are what you need!

programering

105

Author

April 01, 2003 05:14 AM

an example please!

Anton Karlsson
Klingis Entertainment
Games with silly humor

Beer Hunter

712

April 01, 2003 05:15 AM

The c way would use sprintf or strcat.

  char *path = "path/";char *name = "file";char *format = ".dat";char *address = (char*)malloc(strlen(path) + strlen(name) + strlen(format) + 1);sprintf(address, "%s%s%s", path, name, format);// do stuff with addressfree(address);

With c++-style strings, the code becomes:

  #include <string>using std::string;string path = "path/";string name = "file";string format = ".dat";string address = path + name + format;

...I tend to prefer the latter.

[edited by - Beer Hunter on April 1, 2003 6:16:40 AM]

programering

105

Author

April 01, 2003 05:20 AM

But with strcat and strcpy!

Anton Karlsson
Klingis Entertainment
Games with silly humor

Qw3r7yU10p!

819

April 01, 2003 05:28 AM

don''t you have any documentation with your compiler?

programering

105

Author

April 01, 2003 05:45 AM

No, not for those functions.

Drazgal

368

April 01, 2003 05:49 AM

strcat

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_crt_strcat.2c_.wcscat.2c_._mbscat.asp

strcpy

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_crt_strcpy.2c_.wcscpy.2c_._mbscpy.asp

Goolge

www.Goolge.com

[edited by - Drazgal on April 1, 2003 6:50:20 AM]

programering

105

Author

April 01, 2003 06:01 AM

Like this then?
Correct me if I''m wrong here.

char *path = "path/";
char *name = "file";
char *format = ".dat";

char *adress;
adress = (char *)
malloc(sizeof(path) + sizeof(name) + sizeof(format));

strcpy(adress,path);
strcat(adress,name);
strcat(adress,format);

What does strcat stands for short?

Anton Karlsson
Klingis Entertainment
Games with silly humor