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Improved maximumNarcissism

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Chris Boesch 2024-11-02 17:03:46 +01:00
parent d0d31ae73a
commit fb018d212c
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2 changed files with 10 additions and 9 deletions
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15
exercises/065_builtins2.zig
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@ -110,7 +110,6 @@ pub fn main() void {
// name will not be printed if the field is of type 'void'
// (which is a zero-bit type that takes up no space at all!):
if (fields[0].??? != void) {
print(" {s}", .{fields.name});
print(" {s}", .{fields[0].name});
}
@ -137,14 +136,16 @@ pub fn main() void {
// But a change after Zig 0.10.0 added the source file name to the
// type. "Narcissus" became "065_builtins2.Narcissus".
//
// To fix this, I've added this function to strip the filename from
// the front of the type name in the dumbest way possible. (It returns
// a slice of the type name starting at character 14 (assuming
// single-byte characters).
// To fix this, we've added this function to strip the filename from
// the front of the type name. (It returns a slice of the type name
// starting at the index + 1 of character ".")
//
// We'll be seeing @typeName again in Exercise 070. For now, you can
// see that it takes a Type and returns a u8 "string".
fn maximumNarcissism(myType: anytype) []const u8 {
// Turn '065_builtins2.Narcissus' into 'Narcissus'
return @typeName(myType)[14..];
const indexOf = @import("std").mem.indexOf;
// Turn "065_builtins2.Narcissus" into "Narcissus"
const name = @typeName(myType);
return name[indexOf(u8, name, ".").? + 1 ..];
}

4
patches/patches/065_builtins2.patch
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@ -1,5 +1,5 @@
--- exercises/065_builtins2.zig 2024-09-02 19:15:56.569952315 +0200
+++ answers/065_builtins2.zig 2024-09-02 19:13:44.280600350 +0200
--- exercises/065_builtins2.zig 2024-11-02 16:58:30.607829441 +0100
+++ answers/065_builtins2.zig 2024-11-02 16:58:33.821220588 +0100
@@ -58,7 +58,7 @@
// Oops! We cannot leave the 'me' and 'myself' fields
// undefined. Please set them here: