New at C++. I am trying to load a number of bitmaps within a for loop and this code returns an error of error C2110: ''+'' : cannot add two pointers. Trying to load pic1, pic2, ect and using the variable ''i'' as a counter. Any ideas char *strPath = "Data/pic" + i + ".bmp"; Thanks in advance, Dave

Hey man, this aint no java app here. You gotta use strcat and strcpy, ie

strcat(destination, source);

so, in your case:

char* strPath;
char* tmp;

strcpy(strPath, "Data/pic";
sprintf(tmp, "%d.bmp", i);
strcat(strPath, tmp);

Is there anyone with a better implementation?

I had the same experience when i moved from java to c++.

But C++ does support strings.

#include <string>
using namespace std;

string path;

path = "Data/pic" + i + ".bmp";

Exactly the same as in java,only u need to import it. And the string is not string.h, just string.

When u pass it in though, your function might require old style C strings. In this case just do this.

LoadBMP(path.c_str());//presuming LoadBMP is your function for loading the BMP

Hi Everybody:

Thanks for the info! I am still getting errors though. I am using Visual C++ as a compiler.

Anonymous Poster compilers ok but gets stuck "Access violation in strcat.asm.

GamerSg gives me the same error I was having.

Code again

...
...
AUX_RGBImageRec *LoadBMP(char *Filename) // Function header...
...
...

for ( i=0; i<5; i++){

char* strPath=""; // Hade to set to "" to compile
char* tmp="";

strcpy(strPath,"Data/pic");
sprintf(tmp, "%d.bmp", i);
strcat(strPath, tmp);

if (TextureImage=LoadBMP(strPath)){
...

Any ideas?

quote:

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Original post by dsteere
Hi Everybody:

Anonymous Poster compilers ok but gets stuck "Access violation in strcat.asm.
char* strPath=""; // Hade to set to "" to compile
char* tmp="";
Any ideas?

---

Hi
You was close with idea char* strPath="" but try this way
char strPath[256];
char tmp[256];

[Edit:]

this way will be the best
char tmp[MAX_PATH];
sprintf(tmp, "Data/pic%d.bmp", i);

or

char Path[MAX_PATH];
char *basePath = "Data/pic";
char *fileExt = "bmp";
sprintf(Path, "%s%d.%s", basePath, i, fileExt);


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[edited by - Estor on August 26, 2003 2:20:39 AM]

Oops i think i made a tiny mistake.

The + can only be used to join strings.

So you can try this instead.

#include <string>
using namespace std;

string path;

sprintf(path,"Data/pic%d.bmp",i);

quote:

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Original post by GamerSg
#include <cstring>

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Thanks for the info everyone! Finally got my program to work! Thanks once again.