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std › fmt › parse_float › parse › parsePartialNumber Private Function parsePartialNumber Doc Source Private Function std.fmt.parse_float.parse.parsePartialNumber
fn parsePartialNumber (comptime T : type , s : []const u8 , negative : bool , n : *usize ) ?Number T )Params T : type s : []const u8 negative : bool n : *usize File fmt/parse_float/parse.zig: 215
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236 fn parsePartialNumber (comptime T : type , s : []const u8 , negative : bool , n : *usize ) ?Number T ) {
std debug assert s .len != 0 );
const MantissaT = common mantissaType T );
n .* = 0 ;
if (s .len >= 2 and s [0 ] == '0' and std ascii toLower s [1 ]) == 'x' ) {
var stream = FloatStream init s [2 ..]);
n .* += 2 ;
return parsePartialNumberBase T , &stream , negative , n , .{
.base = 16 ,
.max_mantissa_digits = if (MantissaT == u64 ) 16 else 32 ,
.exp_char_lower = 'p' ,
});
} else {
var stream = FloatStream init s );
return parsePartialNumberBase T , &stream , negative , n , .{
.base = 10 ,
.max_mantissa_digits = if (MantissaT == u64 ) 19 else 38 ,
.exp_char_lower = 'e' ,
});
}
}
Parse a partial, non-special floating point number.
This creates a representation of the float as the significant digits and the decimal exponent.