Re: [algogeeks] Re: is it correct??
hey is itoa() is supported by g++ compliers??? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
@vipul : dynamic memory allocation from stack? are you sure? generally dynamic memory allocations are done from the heap right? On Wed, Jun 15, 2011 at 2:28 PM, kartik sachan kartik.sac...@gmail.comwrote: hey is itoa() is supported by g++ compliers??? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Shachindra A C -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
@kartik sachan This function is *not* defined in ANSI-C and is *not* part of C++, but is supported by some compilers. and +1 to Shachindra's post...i also think memory allocation will be from heap...not stack On Wed, Jun 15, 2011 at 2:34 PM, Shachindra A C sachindr...@gmail.comwrote: @vipul : dynamic memory allocation from stack? are you sure? generally dynamic memory allocations are done from the heap right? On Wed, Jun 15, 2011 at 2:28 PM, kartik sachan kartik.sac...@gmail.comwrote: hey is itoa() is supported by g++ compliers??? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Shachindra A C -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Sunny Aggrawal B-Tech IV year,CSI Indian Institute Of Technology,Roorkee -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
Its from stack. Using int a[n] the amount of memory that can be allocated is very small as compared to that in case of using malloc( heap allocation ). On Wed, Jun 15, 2011 at 2:45 PM, sunny agrawal sunny816.i...@gmail.comwrote: @kartik sachan This function is *not* defined in ANSI-C and is *not* part of C++, but is supported by some compilers. and +1 to Shachindra's post...i also think memory allocation will be from heap...not stack On Wed, Jun 15, 2011 at 2:34 PM, Shachindra A C sachindr...@gmail.comwrote: @vipul : dynamic memory allocation from stack? are you sure? generally dynamic memory allocations are done from the heap right? On Wed, Jun 15, 2011 at 2:28 PM, kartik sachan kartik.sac...@gmail.comwrote: hey is itoa() is supported by g++ compliers??? -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Shachindra A C -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Sunny Aggrawal B-Tech IV year,CSI Indian Institute Of Technology,Roorkee -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Vipul -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
The behaviour of allowing the following code to compile: cin x; int a[x]; by gcc/g++ is due to historical reasons. This kind of a declaration is called a variable length array however it is not supported by the C++ and C standards. To prove that this is the case, recompile with g++ -pedantic file.cpp You get: vla.cpp:8:9: warning: ISO C++ forbids variable length array ‘a’ -- DK -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/iRg-lRTKNLUJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
[algogeeks] Re: is it correct??
One line or the other is not correct. The size of an array must be a constant, and you can't read into a const. If you want to do something like this, use malloc: cin x; int *a = (int *)malloc(x*sizeof(int)); You can now use a as if it is an array of size x. Be sure to free the memory before a goes out of scope. Don On Jun 14, 9:39 am, amit amitthecoo...@gmail.com wrote: is such a declaration correct: cinx; int a[x]; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
but such a declaration is working correctly in g++ On Tue, Jun 14, 2011 at 8:22 PM, Don dondod...@gmail.com wrote: One line or the other is not correct. The size of an array must be a constant, and you can't read into a const. If you want to do something like this, use malloc: cin x; int *a = (int *)malloc(x*sizeof(int)); You can now use a as if it is an array of size x. Be sure to free the memory before a goes out of scope. Don On Jun 14, 9:39 am, amit amitthecoo...@gmail.com wrote: is such a declaration correct: cinx; int a[x]; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
it is correct ...in c++ 4.3.2 compiler -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] Re: is it correct??
Its not a standard, it is one of the gcc extension i.e variable length arrays. Memory allocation is done dynamically from stack in such case. On Tue, Jun 14, 2011 at 8:27 PM, kartik sachan kartik.sac...@gmail.comwrote: it is correct ...in c++ 4.3.2 compiler -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- Regards, Vipul -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
