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Folkert 2021-02-15 21:34:55 +01:00
parent 9527434be8
commit 13b2c23c01
19 changed files with 578 additions and 81 deletions
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1
compiler/builtins/bitcode/src/main.zig
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@ -47,6 +47,7 @@ comptime {
exportStrFn(str.strJoinWithC, "joinWith");
exportStrFn(str.strNumberOfBytes, "number_of_bytes");
exportStrFn(str.strFromIntC, "from_int");
exportStrFn(str.strFromFloatC, "from_float");
exportStrFn(str.strEqual, "equal");
}

20
compiler/builtins/bitcode/src/str.zig
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@ -302,6 +302,26 @@ fn strFromIntHelp(allocator: *Allocator, comptime T: type, int: T) RocStr {
return RocStr.init(allocator, &buf, result.len);
}
const c = @cImport({
// See https://github.com/ziglang/zig/issues/515
@cDefine("_NO_CRT_STDIO_INLINE", "1");
@cInclude("stdio.h");
});
// Str.fromFloat
// When we actually use this in Roc, libc will be linked so we have access to std.heap.c_allocator
pub fn strFromFloatC(int: i64) callconv(.C) RocStr {
// const foobar = @bitCast(f32, @intCast(i32, float));
// const result = std.fmt.allocPrint(std.heap.c_allocator, "{}", .{@as(f32, foobar)}) catch unreachable;
const float = @bitCast(f64, int);
var buf: [100]u8 = undefined;
const result = c.snprintf(&buf, 100, "%f", float);
return RocStr.init(std.heap.c_allocator, &buf, @intCast(usize, result));
}
// Str.split
// When we actually use this in Roc, libc will be linked so we have access to std.heap.c_allocator
pub fn strSplitInPlaceC(array: [*]RocStr, string: RocStr, delimiter: RocStr) callconv(.C) void {