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update charToDigit to take advantage of switch syntax

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This commit is contained in:
Andrew Kelley 2017-01-23 01:19:03 -05:00
parent 0b34439c1f
commit 1826a96160
1 changed files with 10 additions and 9 deletions
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19
std/io.zig
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@ -369,16 +369,17 @@ pub fn parseUnsigned(comptime T: type, buf: []u8, radix: u8) -> %T {
error InvalidChar;
fn charToDigit(c: u8, radix: u8) -> %u8 {
const value = if ('0' <= c && c <= '9') {
c - '0'
} else if ('A' <= c && c <= 'Z') {
c - 'A' + 10
} else if ('a' <= c && c <= 'z') {
c - 'a' + 10
} else {
return error.InvalidChar;
const value = switch (c) {
'0' ... '9' => c - '0',
'A' ... 'Z' => c - 'A' + 10,
'a' ... 'z' => c - 'a' + 10,
else => return error.InvalidChar,
};
return if (value >= radix) error.InvalidChar else value;
if (value >= radix)
return error.InvalidChar;
return value;
}
pub fn bufPrintInt(comptime T: type, out_buf: []u8, x: T) -> usize {