Module num_fmt 

Formatting utilities for numbers.

These functions are low-level, but are designed to be extremely fast for their designed use cases. They have strict requirements, and may not return the most ergonomic types to avoid unnecessary allocations and copying.

Structs

StackStr 🔒

A string type with a maximum length known at compile time, stored on the stack.

Statics

SINGLE_DIGITS 🔒

SPACE_PADDED_PAIRS 🔒 formatting

ZERO_PADDED_PAIRS 🔒

Functions

div_100 🔒

five_digits_zero_padded 🔒 formatting

Obtain three strings which together represent n. The first string is the most significant. Leading zeros are included if the number has fewer than 5 digits. The first string will be empty if n is less than 10,000.

four_digits_space_padded 🔒 formatting

Obtain two strings of two ASCII digits each representing n. The first string is the most significant. Leading spaces are included if the number has fewer than 4 digits.

four_digits_zero_padded 🔒

Obtain two strings of two ASCII digits each representing n. The first string is the most significant. Leading zeros are included if the number has fewer than 4 digits.

four_to_six_digits 🔒

Obtain three strings which together represent n. The first string is the most significant. Leading zeros are included if the number has fewer than 4 digits. The first string will be empty if n is less than 10,000.

one_to_four_digits_no_padding 🔒 formatting

Obtain two strings of ASCII digits representing n. The first string is the most significant. No leading zeros or spaces are included.

one_to_three_digits_no_padding 🔒 formatting

Obtain two strings of ASCII digits representing n. The first string is most significant. No leading zeros or spaces are included.

one_to_two_digits_no_padding 🔒

Obtain a string of one or two ASCII digits representing n. No leading zeros or spaces are included.

single_digit 🔒

Obtain a string containing a single ASCII digit representing n.

six_digits_zero_padded 🔒 formatting

Obtain three strings which together represent n. The first string is the most significant. Leading zeroes are included if the number has fewer than 6 digits.

str_from_raw_parts 🔒 ^⚠

Safety

subsecond_from_nanos 🔒

Obtain five strings which together represent n, which is a number of nanoseconds.

three_digits_space_padded 🔒 formatting

Obtain two strings of ASCII digits representing n. The first string is the most significant. Leading spaces are included if the number has fewer than 3 digits.

three_digits_zero_padded 🔒 formatting

Obtain two strings of ASCII digits representing n. The first string is the most significant. Leading zeros are included if the number has fewer than 3 digits.

truncated_subsecond_from_nanos 🔒

Obtain a string of 1 to 9 ASCII digits representing n, which is a number of nanoseconds.

two_digits_space_padded 🔒 formatting

Obtain a string of two ASCII digits representing n. This includes a leading space if n is less than 10.

two_digits_zero_padded 🔒

Obtain a string of two ASCII digits representing n. This includes a leading zero if n is less than 10.