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ofstream help plz

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Started by Huangdi September 01, 2004 09:21 PM

7 comments, last by FireNet 19 years, 7 months ago

Huangdi

122

Author

September 01, 2004 09:21 PM

Hi, I need to display the contents of pointer s2 into the file data.txt: std::ofstream cached ("data.txt"); const char *s2 = r._return.resultElements.__ptr.URL; printf("\tURL = %s\n", s2?s2:"<NONE>"); Now what? "cached << *s2;" doesnt work...

1,062

September 01, 2004 09:27 PM

Assuming s2 is a properly null-terminated C-style string, this should work: cached << s2;

Thunder_Hawk

314

September 01, 2004 09:29 PM

What do you mean by "doesn't work"? Assuming that s2 is a properly null-terminated string, there should be no problem.

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1,062

September 01, 2004 09:32 PM

Quote:Original post by Thunder_Hawk
What do you mean by "doesn't work"? Assuming that s2 is a properly null-terminated string, there should be no problem.

The way he has it puts the first character of the string.

Huangdi

122

Author

September 01, 2004 09:33 PM

EDIT: NM, works now! Thx :) I felt kinda stupid... wtf lol.... haven't programmed in a while...

xtrmntr

144

September 01, 2004 09:33 PM

Wouldn't it put the first character of s2 in the file?

1,062

September 01, 2004 09:33 PM

Quote:Original post by xtrmntr
Wouldn't it put the first character of s2 in the file?

Yeah, my mistake. [wink]

Quote:Original post by Huangdi
wait... what do u mean by null terminated?

A \0 char at the end. Any string with double quotes (") will be null-terminated, eg const char * moo = "This is a null-terminated string.";

Thunder_Hawk

314

September 01, 2004 09:36 PM

Quote:Original post by Ra
Quote:Original post by Thunder_Hawk
What do you mean by "doesn't work"? Assuming that s2 is a properly null-terminated string, there should be no problem.
The way he has it puts the first character of the string.

lol...My eyes are starting to get to me. [wink]