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digitalmars.D - sqrt ?

reply "Asaf Karagila" <kas1 netvision.net.il> writes:
Hi,
i'm pretty new to D, i was never too much a C/C++ programmer, so i don't 
have too much knowledge from that side,
i've got one simple question, how do i use a sqrt() function in D ?
at first, i figured, if its in math.h, i would use 'import std.c.math' and 
just call out sqrt(),
but it didn't work. seeing how i don't have anyone using D that i know, i 
came here..

thanks in advance,

Asaf.
Oct 09 2004
parent reply Sjoerd van Leent <svanleent wanadoo.nl> writes:
Asaf Karagila wrote:

 Hi,
 i'm pretty new to D, i was never too much a C/C++ programmer, so i don't 
 have too much knowledge from that side,
 i've got one simple question, how do i use a sqrt() function in D ?
 at first, i figured, if its in math.h, i would use 'import std.c.math' and 
 just call out sqrt(),
 but it didn't work. seeing how i don't have anyone using D that i know, i 
 came here..
 
 thanks in advance,
 
 Asaf. 
 
 


For sqrt() you should use the std.intrinsic module. This module has the 
sqrt() function build in. Before going any further, it may be wise to 
read the Phobos page at the place a little bit.

http://www.digitalmars.com/d/phobos.html

Regards,
Sjoerd
Oct 09 2004
next sibling parent reply Sjoerd van Leent <svanleent wanadoo.nl> writes:
Sjoerd van Leent wrote:

 Asaf Karagila wrote:
 

 Hi,
 i'm pretty new to D, i was never too much a C/C++ programmer, so i 
 don't have too much knowledge from that side,
 i've got one simple question, how do i use a sqrt() function in D ?
 at first, i figured, if its in math.h, i would use 'import std.c.math' 
 and just call out sqrt(),
 but it didn't work. seeing how i don't have anyone using D that i 
 know, i came here..

 thanks in advance,

 Asaf.


 
 For sqrt() you should use the std.intrinsic module. This module has the 
 sqrt() function build in. Before going any further, it may be wise to 
 read the Phobos page at the place a little bit.
 
 http://www.digitalmars.com/d/phobos.html
 
 Regards,
 Sjoerd


BTW, std.math also includes the sqrt() function.

Regards,
Sjoerd
Oct 09 2004
parent reply Tyro <ridimz_at yahoo.dot.com> writes:
Sjoerd van Leent wrote:

 Sjoerd van Leent wrote:
 

 Asaf Karagila wrote:


 Hi,
 i'm pretty new to D, i was never too much a C/C++ programmer, so i 
 don't have too much knowledge from that side,
 i've got one simple question, how do i use a sqrt() function in D ?
 at first, i figured, if its in math.h, i would use 'import 
 std.c.math' and just call out sqrt(),
 but it didn't work. seeing how i don't have anyone using D that i 
 know, i came here..

 thanks in advance,

 Asaf.


 For sqrt() you should use the std.intrinsic module. This module has 
 the sqrt() function build in. Before going any further, it may be wise 
 to read the Phobos page at the place a little bit.

 http://www.digitalmars.com/d/phobos.html

 Regards,
 Sjoerd


 
 
 BTW, std.math also includes the sqrt() function.


However, there are conflicting defininitions of sqrt() in std.math. 
[i.e. creal sqrt(creal) conflicts with float sqrt(float)] which I think 
is the problem Asaf ran into.


 Regards,
 Sjoerd
Oct 09 2004
parent "Asaf Karagila" <kas1 netvision.net.il> writes:
"Tyro" <ridimz_at yahoo.dot.com> wrote in message
news:ck8d1n$d7a$1 digitaldaemon.com...

 Sjoerd van Leent wrote:

 Sjoerd van Leent wrote:


 Asaf Karagila wrote:


 Hi,
 i'm pretty new to D, i was never too much a C/C++ programmer, so i
 don't have too much knowledge from that side,
 i've got one simple question, how do i use a sqrt() function in D ?
 at first, i figured, if its in math.h, i would use 'import std.c.math'
 and just call out sqrt(),
 but it didn't work. seeing how i don't have anyone using D that i know,
 i came here..

 thanks in advance,

 Asaf.


 For sqrt() you should use the std.intrinsic module. This module has the
 sqrt() function build in. Before going any further, it may be wise to
 read the Phobos page at the place a little bit.

 http://www.digitalmars.com/d/phobos.html

 Regards,
 Sjoerd



 BTW, std.math also includes the sqrt() function.


 However, there are conflicting defininitions of sqrt() in std.math. [i.e.
 creal sqrt(creal) conflicts with float sqrt(float)] which I think is the
 problem Asaf ran into.


 Regards,
 Sjoerd




i kind of solved my problem before i saw the replies, i used the std.math
sqrt() one,
which is using real, my code (a stupid isprime() function) is now ok, i
think..
thanks for the help though..

Cheers,
Asaf
Oct 09 2004
prev sibling parent Tyro <ridimz_at yahoo.dot.com> writes:
Sjoerd van Leent wrote:

 Asaf Karagila wrote:
 

 Hi,
 i'm pretty new to D, i was never too much a C/C++ programmer, so i 
 don't have too much knowledge from that side,
 i've got one simple question, how do i use a sqrt() function in D ?
 at first, i figured, if its in math.h, i would use 'import std.c.math' 
 and just call out sqrt(),
 but it didn't work. seeing how i don't have anyone using D that i 
 know, i came here..

 thanks in advance,

 Asaf.


 
 For sqrt() you should use the std.intrinsic module. This module has the 
 sqrt() function build in. Before going any further, it may be wise to 
 read the Phobos page at the place a little bit.
 
 http://www.digitalmars.com/d/phobos.html


There is no sqrt() function in the std.intrinsic module. The 
documentation is incorrect.


 Regards,
 Sjoerd
Oct 09 2004