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langref: emphasize the use of dereferencing string literals

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expikr 2023-11-21 19:54:13 +08:00 committed by GitHub
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doc/langref.html.in
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@ -899,9 +899,18 @@ pub fn main() void {
The type of string literals encodes both the length, and the fact that they are null-terminated,
and thus they can be {#link|coerced|Type Coercion#} to both {#link|Slices#} and
{#link|Null-Terminated Pointers|Sentinel-Terminated Pointers#}.
Dereferencing string literals converts them to {#link|Arrays#}.
</p>
<p>
Dereferencing string literals converts them to {#link|Arrays#}, allowing you to initialize a buffer with the contents of a string literal.
</p>
{#code_begin|syntax|mutable_string_buffer#}
test {
var buffer = [_]u8{0}**256;
const home_dir = "C:/Users/root";
buffer[0..home_dir.len].* = home_dir.*;
}
{#code_end#}
<p>
The encoding of a string in Zig is de-facto assumed to be UTF-8.
Because Zig source code is {#link|UTF-8 encoded|Source Encoding#}, any non-ASCII bytes appearing within a string literal
in source code carry their UTF-8 meaning into the content of the string in the Zig program;