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Clarify f16 maths - closes #204

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Arya-Elfren 2023-04-26 22:07:20 +01:00 committed by GitHub
parent f83fe12dce
commit 116546a996
1 changed files with 6 additions and 2 deletions
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8
exercises/060_floats.zig
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@ -1,7 +1,8 @@
// //
// Zig has support for IEEE-754 floating-point numbers in these // Zig has support for IEEE-754 floating-point numbers in these
// specific sizes: f16, f32, f64, f80, and f128. Floating point // specific sizes: f16, f32, f64, f80, and f128. Floating point
// literals may be written in scientific notation: // literals may be written in the same ways as integers but also
// in scientific notation:
// //
// const a1: f32 = 1200.0; // 1,200 // const a1: f32 = 1200.0; // 1,200
// const a2: f32 = 1.2e+3; // 1,200 // const a2: f32 = 1.2e+3; // 1,200
@ -26,7 +27,10 @@
// operations with numeric literals, ensure the types match. Zig // operations with numeric literals, ensure the types match. Zig
// does not perform unsafe type coercions behind your back: // does not perform unsafe type coercions behind your back:
// //
// var foo: f16 = 13.5 * 5; // ERROR! // fn foo(bar: u16) f16 { return 13.5 * bar; } // ERROR!
// var foo: f16 = 13.5 * @as(u8, 5); // ERROR!
// var foo: f16 = 13.5 * 5; // This is a safe compile-time
// // conversion, so no problem!
// var foo: f16 = 13.5 * 5.0; // No problem, both are floats // var foo: f16 = 13.5 * 5.0; // No problem, both are floats
// //
// Please fix the two float problems with this program and // Please fix the two float problems with this program and