Also this one isn't obvious:
In [21]: print sympy.ccode(sympy.symbols('x')**2, user_functions={"Pow":
"std::pow"})
std::pow(x, 2)
Jason
moorepants.info
+01 530-601-9791
On Thu, Feb 26, 2015 at 9:53 AM, Jason Moore <moorepa...@gmail.com> wrote:
> John,
>
> The key's to the user_functions dictionary should be strings that map to
> SymPy functions in the expressions:
>
> In [18]: print sympy.ccode(sympy.sin(sympy.symbols('x')),
> user_functions={"sin": "std::sin"})
> std::sin(x)
>
> In [19]: print sympy.ccode(sympy.Abs(sympy.symbols('x')),
> user_functions={"Abs": "std::abs"})
> std::abs(x)
>
>
>
> Jason
> moorepants.info
> +01 530-601-9791
>
> On Thu, Feb 26, 2015 at 8:56 AM, John Peterson <jwpeter...@gmail.com>
> wrote:
>
>> Hi,
>>
>> It's entirely possible I'm using ccode wrong, but I can't seem to get it
>> to recognize my custom replacements for sqrt, fabs, or pow. Here's a
>> simple test case:
>>
>> #!/usr/bin/env python
>>> from sympy import *
>>>
>>
>>
>> print ccode(sympify('sqrt(x)'), user_functions={"sqrt": "std::sqrt"})
>>> print ccode(sympify('Abs(x)'), user_functions={"fabs": "std::abs"})
>>> print ccode(sympify('x**2'), user_functions={"pow": "std::pow"})
>>
>>
>> On my system, this prints:
>>
>> sqrt(x)
>>> fabs(x)
>>> pow(x, 2)
>>
>>
>> I can of course work around this pretty easily with text replacement, so
>> it's not a big deal...
>>
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