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Diffstat (limited to 'doc/go_for_cpp_programmers.html')
| -rw-r--r-- | doc/go_for_cpp_programmers.html | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/doc/go_for_cpp_programmers.html b/doc/go_for_cpp_programmers.html index 055242f71..d6d4329ba 100644 --- a/doc/go_for_cpp_programmers.html +++ b/doc/go_for_cpp_programmers.html @@ -257,21 +257,22 @@ You cannot write <code>c = *p++</code>. <code>*p++</code> is parsed as <h2 id="Constants">Constants </h2> <p> -In Go integer and floating-point constants have so-called ideal types. -This applies even to constants named with a <code>const</code> declaration, -if no -type is given in the declaration. An ideal type becomes concrete when -it is actually used. This permits constants to be used relatively +In Go constants may be <i>untyped</i>. This applies even to constants +named with a <code>const</code> declaration if no +type is given in the declaration and the initializer expression uses only +untyped constants. +An untyped constant becomes typed when it is used within a context that +requires a typed value. This permits constants to be used relatively freely without requiring general implicit type conversion. <pre> -var a uint; f(a + 1) // Ideal type of "1" becomes "uint". +var a uint; f(a + 1) // untyped numeric constant "1" becomes typed as uint </pre> <p> -The language does not impose any limits on the size of an abstract -integer constant or constant expression. A limit is only applied when -a constant expression is used where a type is required. +The language does not impose any limits on the size of an untyped +numeric constant or constant expression. A limit is only applied when +a constant is used where a type is required. <pre> const huge = 1 << 100; f(huge >> 98) |