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| subject: | indirection |
-= Pete Replied to Paul Edwards about: indirection =- G'day Paul PE> int *x; PE> int y; PE> y = 3 * x; this one generates the error C2121 "bad right operand" and the warning C4047 "different levels of indirection" PE> y = * x; PE> y = *x; These two compile without error with QC25 so i assume the space is ignored as y is assigned the same value in both cases (whatever *a points to) btw i added 'int z; x = &z; *x = 9;' after to test if y was being assigned the same value in both cases 'example 2 & 3', it was. PE> Which ones do you reckon are legal? I am wondering how mulitplication PE> and indirection are distinguished between. Is the space significant? Examples 2 & 3 seem legal so the space doesn't seem significant as in both cases y is assigned what x points to, if example 1 is changed to 'y = 3 * *x;' or 'y = **x;' the result is 27 in both cases assuming that "*x = 9 as i stated above" so again the space is ignored and x is not misinterpreted as a pointer to a pointer. I'd say multiplication and indirection are distinguished by the type of variable the result is applied to. -=Pete=- --- OMX/Blue Wave v2.12* Origin: Gates of Hell (3:713/914.16) SEEN-BY: 50/99 620/243 623/630 711/401 409 410 413 430 808 932 934 712/508 SEEN-BY: 712/515 713/111 317 601 611 615 618 700 826 888 914 714/906 800/1 @PATH: 713/914 615 888 711/808 934 |
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