Do you have to free strings passed to exported C functions in Emscripten? -

Do you have to free strings passed to exported C functions in Emscripten? -

i found out through emscripten wiki (interacting code) c functions called javascript ccall or cwrap should have char* argument or homecoming type when beingness passed or returning string.

i not experienced in c (the rest of project written in c++) know have manually free dynamic strings in c. case when passing string javascript c function, , if so, how should done?

in cases can c++ code take care of memory allocation , freeing you. illustration if pass in literal string (in quotes), freed after function returns.

for variable strings, recommend utilize std::string (as do), , when pass emscripten function, phone call c_str() method on convert it.

for example:

my_js_function(my_string.c_str());

emscripten