Changes in version 0.5.0 (2019-04-25)                  

  - fixed check_key with no columns
  - added units testing
  - added names = TRUE and class = TRUE arguments to check_attributes(),
    check_no_attributes() and check_vector()
  - added na_distinct = FALSE argument to check_key
  - replace internal deparse_x_name() with exported chk_deparse()
  - added check_name() to check if elements of character vector are each
    a syntactically valid name
  - check_named() now only gives 1 warning if error = FALSE and not
    named
  - removed check_tz()

                 Changes in version 0.4.0 (2018-11-01)                  

Major Changes

  - added err as dependency for message generation
  - check_data argument values now NULL by default (as opposed to
    missing)
  - lengths including nrows and ncols can now be checked by a vector of
    possible values
  - coerce = TRUE now also strips attributes for flag, int, dbl, string
    and logical, integer, double, character.

Exported

  - exported chk_deparse() to deparse dealing with NAs for packages
    which extend
  - exported chk_fail() to have conditional error or warning messages
    for packages which extend.
  - exported chk_max_int(), chk_min_int(), chk_min_dbl(), chk_max_dbl()
    and chk_tiny_dbl() to get integer and numeric ranges for system.

New Functions

  - added check_intersection() to check the intersection between two
    atomic vectors
  - added check_integer(), check_numeric(), check_double(),
    check_logical() and check_character()
  - added check_int() and check_dbl() both of which do coercion
  - added check_prob() to check a probability
  - added check_pos_dbl(), check_neg_dbl() and check_noneg_dbl()
  - added check_pos_int(), check_neg_int() and check_noneg_int()
  - added check_attributes() to check an objects attributes and
    check_no_attributes()
  - added check_lgl(), check_chr(), check_day(), check_dttm()
  - added check_grepl()

New Arguments

  - added attributes argument to check_vector() and check_scalar() which
    now only accept a flag for named
  - added complete = TRUE argument to check_names()
  - added exclusive = FALSE and order = FALSE to check_list()

Deprecated

  - deprecated unique = FALSE, length = NA and named = NA from
    check_list() as checked through values argument or with specific
    functions
  - deprecated check_regex() and check_pattern() (and added
    check_grepl()) and deprecated regex argument for pattern argument
  - deprecated check_flag_na()

                 Changes in version 0.3.0 (2018-06-27)                  

  - redefined check_scalar (following previous deprecation)
  - added only = FALSE argument to check_vector() to check whether only
    the actual values are permitted.
  - added check_rbind() to check two data frames can be smoothly rbinded

                 Changes in version 0.2.0 (2018-03-26)                  

  - deprecated check_tz() for check_tzone()
  - added check_unused() to check ... is unused within a function
  - added check_homogenous() to check object's elements are the same
    class
  - added check_flag_na() to check is scalar logical

                 Changes in version 0.1.0 (2018-03-02)                  

  - added check_nchar() function
  - check_vector() and check_list() now allow named argument to be a
    regular expression or count range
  - added nchar = c(0L, .Machine$max.integer) and regex = ".*" arguments
    to check_named()
  - added check_regex() function
  - added all_y = TRUE argument to check_join() to check all rows in y
    in join
  - changed check_join() error message to
    ...join in x and y must include all the rows in x as opposed to
    ...join in x and y violates referential integrity
  - added check_number() to check that object is a scalar real
  - added assertive-programming vignette
  - vector length are now checked before values
  - lengths can now be specified using TRUE, FALSE or NA (# 2)

                 Changes in version 0.0.2 (2018-01-29)                  

  - added check_inherits() and check_classes() functions
  - check_named() now only checks unique when unique = TRUE
  - check_names() (and check_colnames()) can now check names are unique
    and also accept names = character(0) (and colnames = character(0))

                        Changes in version 0.0.1                        

  - first official release