Replace malloc, calloc, realloc and free in a c module with a zig allocator. Usefull in order to use zigs debug allocator when interacting with C code to check for memory leaks, double frees and all its features. In Release modes it is probably just unnecessary if you pass it the gpa from juice main.
zig fetch --save git+https://github.com/D-Berg/zalloc.gitconstzalloc=@import("zalloc");
pubfnbuild(b: *std.Build) !void {
//...// add it as a dependencyconstzalloc_dep=b.dependency("zalloc", .{
.optimize=optimize,
.target=target,
});
// Example c lib, shoutout to md4cconstmd4c_mod=b.addModule("md4c", .{
.target=target,
.optimize=optimize,
.link_libc=true,
});
// this overwrites malloc, calloc, realloc and free in // all c source files in the c module and will only affect that module.zalloc.infect(md4c_mod);
// import the and link zalloc to your exeexe_mod.addImport("zalloc", zalloc_dep.module("zalloc"));
exe_mod.linkLibrary(zalloc_dep.artifact("zalloc"));
}
constzalloc=@import("zalloc");
pubfnmain(init: std.Io.Init) !void {
// Specify which allocator the c library will use// DO this before calling any of the c functions.// Forgetting this will lead to allocations returning null.zalloc.allocator=init.gpa;
zalloc.io=init.io;
// ...// now md4c will use zigs debug allocator.constrc=md4c.md_html(
markdown.ptr,
@intCast(markdown.len),
processHtml,
null,
md4c.MD_FLAG_COLLAPSEWHITESPACE,
0,
);
if (rc!=0) returnerror.FailedToParseMarkdown;
}