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Reject bare +/- input when parsing floats

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This commit is contained in:
cryptocode 2021-03-04 18:42:56 +01:00 committed by Isaac Freund
parent 434fce2146
commit 02737d535a
1 changed files with 3 additions and 1 deletions
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4
lib/std/fmt/parse_float.zig
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@ -339,7 +339,7 @@ fn caseInEql(a: []const u8, b: []const u8) bool {
}
pub fn parseFloat(comptime T: type, s: []const u8) !T {
if (s.len == 0) {
if (s.len == 0 or (s.len == 1 and (s[0] == '+' or s[0] == '-'))) {
return error.InvalidCharacter;
}
@ -379,6 +379,8 @@ test "fmt.parseFloat" {
testing.expectError(error.InvalidCharacter, parseFloat(T, ""));
testing.expectError(error.InvalidCharacter, parseFloat(T, " 1"));
testing.expectError(error.InvalidCharacter, parseFloat(T, "1abc"));
testing.expectError(error.InvalidCharacter, parseFloat(T, "+"));
testing.expectError(error.InvalidCharacter, parseFloat(T, "-"));
expectEqual(try parseFloat(T, "0"), 0.0);
expectEqual(try parseFloat(T, "0"), 0.0);