int(*p)[col]; Here, p is a pointer to an array of 4 integers. Size of *p is 4X4 = 16.
p=(int(*)[col])malloc(row*sizeof(*p)); here clearly 3X 16 = 48 bytes of memory is being allocated. On Sat, Sep 3, 2011 at 9:14 PM, piyush agarwal <[email protected]> wrote: > no. of rows is 3 > size of (*p) is 12 > then how can 48 be the no. of bytes ?? > > On Sat, Sep 3, 2011 at 8:32 AM, Deepak Garg <[email protected]>wrote: > >> +1 >> >> >> On Sat, Sep 3, 2011 at 8:57 PM, Ankuj Gupta <[email protected]> wrote: >> >>> p is a pointer to an array of 4 integers. So when you do (int(*) >>> [col])malloc(row*sizeof(*p)) total of 48 bytes is allocated as >>> sizeof(*p) is 12 bytes. >>> >>> On Sep 3, 4:14 pm, rohit <[email protected]> wrote: >>> > how many bytes are allocated by following code? >>> > >>> > #include<alloc.h> >>> > #define col 4 >>> > #define row 3 >>> > >>> > int main() >>> > { >>> > int(*p)[col]; >>> > p=(int(*)[col])malloc(row*sizeof(*p)); >>> > >>> > return 0; >>> > >>> > } >>> > >>> > please explain answer? >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]. >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >>> >> >> >> -- >> U.D.I.T >> >> Sent by Nokia OVI (c) >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > > > -- > Piyush Agarwal > Final Year Undergraduate > Department of Computer Engineering > Malaviya National Institute of Technology > Jaipur > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Nitin Garg "Personality can open doors... but only Character can keep them open" -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
