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Vector help

Started by TutenStain May 12, 2010 at 9:12 AM 3 replies 800+ views

Original Post

May 12, 2010 at 9:12 AM

Probably a easy question but here it goes. Why does this always bring me to an instant crasch? Vector myX; Vector myZ; //insert data into vectors... //Crash when reading like this: float test = myX[myZ[4]];

RabidDog

May 12, 2010 at 9:15 AM

Use .at() instead of []

float test = myX.at(myZ.at(4));

Won't stop the crash but will likely give you an out of bounds access error.

RabidDog

May 12, 2010 at 9:18 AM

AND I just realized you're trying to index into an array with a float index. That won't work.

Evil Steve

May 12, 2010 at 9:37 AM

Quote:
Original post by RabidDog
AND I just realized you're trying to index into an array with a float index. That won't work.

It'll work, but it's probably a bad idea to try and do it.

As for the actual problem, either myZ doesn't have 4 elements in it, or myX doesn't have whatever myZ[4] is elements in it.

TutenStain

May 12, 2010 at 11:32 AM

Quote:
Original post by Evil Steve
Quote:
Original post by RabidDog
AND I just realized you're trying to index into an array with a float index. That won't work.
It'll work, but it's probably a bad idea to try and do it.

As for the actual problem, either myZ doesn't have 4 elements in it, or myX doesn't have whatever myZ[4] is elements in it.

Spot on.

Apparently my for loop did not fill the vectors correctly.

Thanks a bunch.

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