emscripten

I have a C function compiled into asm.js with the following parameters: void myfunc(double v1[], double v2[], int v_size, double c) It takes in an array ( v1 ), applies a transformation, then fills another array of the same size ( v2 ) with the output. I compile it, and then run the following JS code: v1 = new Array(1.0, 1.5, 2.0); v2 = Module._malloc(8 * v1.length); Module.ccall("myfunc", null, ["array", "number", "number", "number"], [v1, v2, v1.length, 2]); However when I run getValue(v2, "double") I get 1.297703e-318 (which is wrong), and when I run getValue(v2 + 8, "double") or getValue

Linking OpenSSL to webassembly Before asking this question I just want to say that I did some homework. The question is very similar to the one already asked here i.e. How to link OpenSSL with emscripten? After I found a very good and detail manual how to compile OpenSSL to webassemly here https://www.ip6.li/node/129 I was able to run all steps successfully i.e. 1) first go to the directory where the latest emscripten is downloaded and set some path variables: ~/emscripten/emsdk$ source ./emsdk_env.sh 2) then execute the script from the manual above ./mk-openssl-webassemby.sh: Basically, it

I am having quite a lot of problems with emscripten inter-operating between C and Javascript. More specifically, I am having trouble accessing a struct created in C in javascript, given that the pointer to the struct is passed into javascript as an external library . Take a look at the following code: C: #include <stdlib.h> #include <stdio.h> #include <inttypes.h> struct test_st; extern void read_struct(struct test_st *mys, int siz); struct test_st{ uint32_t my_number; uint8_t my_char_array[32]; }; int main(){ struct test_st *teststr = malloc(sizeof(struct test_st)); teststr->my_number = 500;

I am trying to build with emscripten a program which uses std::vector and std::map and the compilation is successful. However, when I ran it on the web browser(firefox/chrome), UnboundTypeError was catched. [03:21:26.453] UnboundTypeError: Cannot call intArrayToVector due to unbound types: Pi Here is c++ code and HTML file which uses generated javascript code. test.cpp: #include <vector> #include <emscripten/bind.h> using namespace emscripten; std::vector<int> intArrayToVector(int* input, int num){ std::vector<int> vec; for(int i=0; i<num; i++){ int val = *(input+i); vec.push_back(val); }

I followed the Webassembly getting started tutorial http://webassembly.org/getting-started/developers-guide/ It worked fine and displayed the "Hello, world!" message in the browser. Then I tried a small C++ code, that opens a text file and does the calculation (10 * 20) after reading the file. emcc compiled the file just fine, no errors. But when I serve the file over HTTP by running emrun, it cannot open the file. This is what I see in the emrun web console: Unable to open file 200 Is there any restrictions to open files from the local disk? [thiago@terra hello]$ cat pfile.cpp #include

My goal is to use LAPACK with Emscripten. My question is: how to port LAPACK to JS? The are two ways I can think of: CLAPACK to JS where my question is: does anybody know an unofficial version that is later than 3.2.1? And the other way to think of is: how to port FORTRAN to JS? Emscripten is capable of transforming C code to JavaScript. But unfortunately, LAPACK 3.5.0 ( http://www.netlib.org/lapack/ ) is only available in FORTRAN95. The CLAPACK project ( http://www.netlib.org/clapack/ ) is basically what I want: a C version of LAPACK. But this one is outdated; the latest is 3.2.1. F2C only