Problems when using floats in for loops

MrC_XBMC · 2006-11-06T07:05:31

Hi In certain circumstances when using floats in for loops the termination value is not calculated correctly. Example float[] myArray(70); float aSize = 8; float MyFunction(float a) { return a; } void Test() { for (float k = 0; k< aSize; k++) { myArray[MyFunction(k*aSize)] = k; } for (int i = 0; i< aSize*aSize; i++) { Print("i = " + i + "\n"); myArray = i; } } In the above example the 2nd for loop should terminate at 64 but it keeps going until it eventually crashes with an out of bounds exception when it hits 70. Remove the 1st for loop and the 2nd for loop stops at 64 as expected. Remove the call to MyFunction and the 2nd loop works. Remove the *aSize in the 1st for loop and the 2nd loop works. Compiled Bytecode 31 8 * SUSPEND 32 8 * CpyVtoV4 v4, v1 34 8 * iTOf v4 35 8 * CpyGtoV4 v5, 1 37 8 * CpyGtoV4 v4, 1 39 8 * MULf v5, v5, v4 41 8 * CMPf v4, v5 43 8 * JNS +55 (d:100) I don't fully understand the above but it looks like v4 is getting overwritten before it is used. I am using the svn version of AngelScript from today but this problem is also in version 2.5.0b. Thanks.

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Started by MrC_XBMC October 07, 2006 07:58 AM

9 comments, last by WitchLord 18 years ago

WitchLord

4,860

November 06, 2006 07:05 AM

;)

Doesn't Microsoft have plans to allow hobbyists and independent developers to implement games and applications for XBox 360?

I heard you would have to pay a subscription fee for this content though. :(

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Problems when using floats in for loops

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Problems when using floats in for loops

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