Raspberry Pi Forums

lilzz

@andyD, why's push_heap always called? The V.size never equal to n?

lilzz

what's your point?
Are you telling me you know the answer above because you have a book?

yeah right!

How about just answer one question above just prove you already know the answer?

lilzz

std::less<T> with less defined as structure. template <class _Tp> struct less : public binary_function<_Tp, _Tp, bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x < __y; } }; 1) what's the difference between _ and __ from above?(_Tp , __x) what does it means to the compiler?...

lilzz

@andyD , your explanation is very cool. Thx

lilzz

#ifndef PNR_BITVECTOR_HH #define PNR_BITVECTOR_HH #include <vector> #include <cstddef> #include <cstdint> #include <cassert> template<size_t B> class BasedBitVector { int n; std::vector<uint64_t> v; public: class BitRef { std::vector<uint64_t> &v; size_t i; public: BitRef (std::vector<uint64_t> &v_...

lilzz

1)BasedBitVector<1> locked;

what's the use of this one? what purpose?

2) BasedVector<int, 1> gate
why two types inside <>? it's a vector of int and constant 1's?

3) std::vector<std::vector<int>> related_tiles;

is that of 2D array of ints?

lilzz

1) match = re.match(r"B(\d+)\[(\d+)\]$", bit)

what does "B(\d+)\[(\d+)\]$" means?

2) match = re.match(r"(.*?_)(\d+)(.*)", s[2])

"(.*?_)(\d+)(.*)"?

lilzz

const char *const *Args,

what is this? Args is pointer to what? why there's 2 *there?

lilzz

I don't see the advantage of using boolean ** versus boolean is it because of itchy fingers?? To be honest if you don't see the advantage then you don't understand the difference. It seems you really don't understand C and are trying a project that is much to advanced for you. Go and find a good C ...

lilzz

I don't see the advantage of using boolean ** versus boolean

is it because of itchy fingers??

lilzz

PeterO wrote:It's the same as it was the last time you asked the same question !

viewtopic.php?f=33&t=117850&p=801225#p801225

PeterO

yeah, but the answer I got is related 2 -d array. what about Boolean ** ? you know?

lilzz

Joe Schmoe wrote:Reading a basic C book would probably help.

or general search around the google too for that matter. I guess eventually the answers would be there, someday.

lilzz

I like to create an application and need a good framework that work in Linux and Window.
I also have alot of C codes too that needed to be integrated. So, the frame work need to interface well with C codes or even Java codes.

lilzz

1) float **delta_clb_to_clb; delta_clb_to_clb[id_x][id_y]; case 1 is obvious,delt_clb_to_clb is declared with 2 level of pointers ** because it's for a 2-d array. 2) struct s_block {char *name; enum e_block_types type; int *nets; int x; int y;}; block = (struct s_block *) my_malloc (num_blocks* size...

lilzz

what's the difference between Hashmap and Hashset?

The difference betwen ArrayList versus Arrayname [ ]

lilzz

for x in range(1, self.max_x): for y in range(1, self.max_y): if x in (3, 10): if y % 2 == 1: self.b_tiles[(x, y)] = ["0" * 42 for i in range(16)] else: self.t_tiles[(x, y)] = ["0" * 42 for i in range(16)] else: self.l_tiles[(x, y)] = ["0" * 54 for i in range(16)] 1)What's "0"*42 for i in range(16)...

lilzz

http://s1298.photobucket.com/user/Irene_Cassandra/media/setup2_zpsf3bbb25a.png.html 1)Can I duplicate this setup for $60 USD? 2)laser induced spectroscopy, is that using green visible laser at 532nm? 3)What if sample is liquid in glass bottle? would that glass interfere with laser and liquid sample...

lilzz

Someone make fpga board for pi but I see they use SPI interface.that's too slow. Fpga usually have bursts of data coming through. SPI is not good for that. Any other options?

lilzz

no more /etc/modprobe.d/raspi-blacklist.conf file. I don't see it,

moprobe spi_bcm2708, it said No such device.

what happened?

lilzz

Raid only protects against storage failure, it does not inherently protect against storage being corrupted by improper shutdown. Got corrupted sd card few times, how to implement a raid so it can self correcting therefore no need for me to 're image I think it should work. Raid has a mirror section...

lilzz

Got corrupted sd card few times, how to implement a raid so it can self correcting therefore no need for me to 're image

lilzz

I heard people's OS image got corrupted on sdcard. Is Nand chip more robust. I never heard BIOS being corrupted on Nand flash chip.

lilzz

simplesi wrote:To what degree of accuracy do you need?

Simon

mm or inch. regular mechanic drawing.

lilzz

I would like have the mechanic drawing of model A+ showing the board size and hole positions.

lilzz

Is it related sudo apt-install issues?

what kind of parameters we have to watch out for?

Search found 411 matches

Re: std::less<T> and push_heap versus push_back

Re: std::less<T> and push_heap versus push_back

std::less<T> and push_heap versus push_back

Re: A vector of bunch of constant 1's

Re: A vector of bunch of constant 1's

A vector of bunch of constant 1's

The following regular expression

const char const Args,

Re: the purpose of ** besides 2-d array?

Re: the purpose of ** besides 2-d array?

Re: the purpose of ** besides 2-d array?

Re: the purpose of ** besides 2-d array?

What's a good GUI framwork for Linux and Window?

the purpose of ** besides 2-d array?

How do you use Hashmap, Hashset, ArrayList , [ ]

How does the following codes do

Pi controlled Laser system.

logic pi any good?

what happened to latest Raspbian

Re: how to implement software RAID

how to implement software RAID

is flash nand chip more reliable than sdcard

Re: model A+ dimension and holes position

model A+ dimension and holes position

what's the usage of /etc/apt/sources.conf?