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| author | Andrew Kelley <superjoe30@gmail.com> | 2017-08-18 17:54:42 -0400 |
|---|---|---|
| committer | Andrew Kelley <superjoe30@gmail.com> | 2017-08-18 18:05:28 -0400 |
| commit | 558ece8f6f1889bc4773432c16cdf96a54ec1431 (patch) | |
| tree | 2db2cbdf0c76cd2a29e1dbb8f2a3efcc2c05d78a /std | |
| parent | 33c592e981f93f207651b8353a8cbc3d09440353 (diff) | |
| download | zig-558ece8f6f1889bc4773432c16cdf96a54ec1431.tar.gz zig-558ece8f6f1889bc4773432c16cdf96a54ec1431.zip | |
slightly nicer floating point printing
Diffstat (limited to 'std')
| -rw-r--r-- | std/fmt/index.zig | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/std/fmt/index.zig b/std/fmt/index.zig index 012a65e01e..1366fd87d4 100644 --- a/std/fmt/index.zig +++ b/std/fmt/index.zig @@ -243,12 +243,20 @@ pub fn formatFloat(value: var, context: var, output: fn(@typeOf(context), []cons return false; if (!output(context, ".")) return false; - if (!output(context, float_decimal.digits[1..])) - return false; - if (!output(context, "e")) - return false; - if (!formatInt(float_decimal.exp, 10, false, 0, context, output)) - return false; + if (float_decimal.digits.len > 1) { + if (!output(context, float_decimal.digits[1 .. math.min(usize(7), float_decimal.digits.len)])) + return false; + } else { + if (!output(context, "0")) + return false; + } + + if (float_decimal.exp != 1) { + if (!output(context, "e")) + return false; + if (!formatInt(float_decimal.exp, 10, false, 0, context, output)) + return false; + } return true; } |