motiejus/zig
1
Fork 0
Code Releases Activity

more intuitive left shift and right shift operators

Browse Source 
Before:
 * << is left shift, not allowed to shift 1 bits out
 * <<% is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out

After:
 * << is left shift, allowed to shift 1 bits out
 * >> is right shift, allowed to shift 1 bits out
 * @shlExact is left shift, not allowed to shift 1 bits out
 * @shrExact is right shift, not allowed to shift 1 bits out

Closes #413
This commit is contained in:
Andrew Kelley
2017-08-09 10:09:38 -04:00
parent 54675b060a
commit 35d3444e27
28 changed files with 274 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
test/compile_errors.zig
View File

@@ -1959,4 +1959,18 @@ pub fn addCases(cases: &tests.CompileErrorContext) {
\\}
,
".tmp_source.zig:2:15: error: expected pointer, found 'i32'");
cases.add("@shlExact shifts out 1 bits",
\\comptime {
\\ const x = @shlExact(u8(0b01010101), 2);
\\}
,
".tmp_source.zig:2:15: error: operation caused overflow");
cases.add("@shrExact shifts out 1 bits",
\\comptime {
\\ const x = @shrExact(u8(0b10101010), 2);
\\}
,
".tmp_source.zig:2:15: error: exact shift shifted out 1 bits");
}