Bug 18248 – radix overload of std.conv.parse fails to throw on non-empty range without number

Per the documentation for std.conv.parse, parse is supposed to throw if "no character of the input was meaningfully converted." The main overload of parse does this, and the radix overload does if it's given a radix of 10 (since that just calls the main overload) or if the range is empty. However, if you pass it a radix other than 10 and string that is not empty but which does not start with a number, it returns 0 on failure instead of throwing. e.g. this code should throw ---------------- void main() { import std.conv; auto str = ";"; assert(str.parse!uint(16) == 0); // should throw assert(str == ";"); } ---------------- However, it passes.

@berni44 created dlang/phobos pull request #7310 "Fix Issue 18248 - radix overload of std.conv.parse fails to throw on" fixing this issue: - Fix Issue 18248 - radix overload of std.conv.parse fails to throw on non-empty range without number https://github.com/dlang/phobos/pull/7310

dlang/phobos pull request #7310 "Fix Issue 18248 - radix overload of std.conv.parse fails to throw on" was merged into master: - 088e55a56a4fd06067165f9a9d9eaf2173a93f73 by Bernhard Seckinger: Fix Issue 18248 - radix overload of std.conv.parse fails to throw on non-empty range without number https://github.com/dlang/phobos/pull/7310