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Questions tagged [code-generation]

91 questions
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7 answers

What kinds of uses of SymbolicC (introduced in Mathematica 8) do you foresee? Are there any neat examples already?

Mathematica 8 introduced SymbolicC, a set of Mathematica functions that capture C language constructions in the familiar Mathematica tree-like fashion. Additionally, there are functions to write SymbolicC trees as straight C code to a file. The…
Sjoerd C. de Vries
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Generating assignments and transforming code inside held forms when generating code

I have been playing with slightly above trivial code manipulations in Mathematica. I thought Mathematica would be great for this kind of work because of rule replacement and expression manipulation, but I have been running in a lot of issues (I am…
Manuel Odendahl
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13
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Bug: Library functions from older versions of Mathematica may crash in Mathematica 11.1 and conversely

The following is a confirmed bug [CASE:3846875] that turned up in the prerelease 11.1.0 and is not solved in the official release. This is a small example. Execute the following commands in Mathematica 11.0 or…
Fred Simons
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1 answer

How to prevent SymbolicC constructs from using the semicolon (;) as the separator?

When putting several SymbolicC expressions in a list, they will usually be joined together with semicolons in the final generated code: << SymbolicC` {CCall["g", 2], CCall["h", 3]} // ToCCodeString g(2); h(3); This is true when pieces of code are…
Szabolcs
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7
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How do I create a function pointer typedef using SymbolicC

I am just getting started with the SymbolicC package, and am trying to figure out how to handle function pointer typedefs, like, say: typedef double (*rhs)(double, double); The problem is that the CTypedef function expects its arguments to be…
Pillsy
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5
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1 answer

Generate FORTRAN77 code from Mathematica

I need to transform a function from Mathematica to Fortran77. An internal program FortranForm gives some result, but it works incorrectly in Fortran77. The string must start a 7th column and finish at 72th, ArcTan and Log must be transformed to ATAN…
IgorPy
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Why are Parenthesis not added to CExpression in Package SymbolicC?

The documentation of SymbolicC, more specifically of COperator, states that Parentheses are added as necessary together with the following example: In[1]:= Needs["SymbolicC`"] In[2]:= COperator[Times, {COperator[Plus, {a, b}], c}] //…
Sunday
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Easy code help about matrix. How to change the elements in a given matrix?

For example I have a matrix A[1,1]={1,2,3,4}; Now I want to change the second element of A[1,1] to 5,so my code is A[1,1][[2]]=5; but there will be some error messages. what I want to get is A[1,1]={1,5,3,4}; What needs to be noted in particular…
郑新然
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SymbolicC`: Is there a CChar, i.e. a way to generate a single character constant?

I am aware of CConstant and CString, but neither can output the single-char literal 'a'
masterxilo
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2
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SymbolicC Simplified Displayed

How might I display a simplified SymbolicC below. For example in the following example Needs["SymbolicC`"] CWhile[COperator[Less, {i, j}], CAssign[i, CCall[ fun, {i}]] ] // ToCCodeString[#1, "Indent" -> 1] & Is it possible to display it like…
William
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SymbolicC namespace?

What is the equivalent for C++'s using namespace ...; in SymbolicC package of mathematica and are there any good resources like video tutorial or lecture or books covering this package?
user13892
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Generate effective C/Java code (minimizing operations)

Is it possible to generate C/Java code with Mathematica so that it minimizes number of operations performed? For example, for matrix inverse or determinant? With good caching variables?
Suzan Cioc
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How to create a file that runs without displaying the code (similar to an .exe)

I am writting a code that could be useful for some people. The program will be free but I would like to protect the code. As I am not good at explaining myself I will simply illustrate my question with an example: Let's say that I make the following…
neuron
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