The default precision for %e and %f is 6; for %g it is the smallest
number of digits necessary to identify the value uniquely.
- For strings, width is the minimum number of characters to output,
- padding with spaces if necessary, and precision is the maximum
- number of characters to output, truncating if necessary.
+ For most values, width is the minimum number of characters to output,
+ padding the formatted form with spaces if necessary.
+ For strings, precision is the maximum number of characters to output,
+ truncating if necessary.
Other flags:
+ always print a sign for numeric values;
write e.g. U+0078 'x' if the character is printable for %U (%#U).
' ' (space) leave a space for elided sign in numbers (% d);
put spaces between bytes printing strings or slices in hex (% x, % X)
- 0 pad with leading zeros rather than spaces
+ 0 pad with leading zeros rather than spaces;
+ for numbers, this moves the padding after the sign
+
+ Flags are ignored by verbs that do not expect them.
+ For example there is no alternate decimal format, so %#d and %d
+ behave identically.
For each Printf-like function, there is also a Print function
that takes no format and is equivalent to saying %v for every