28 Text processing library [text]

28.3 Localization library [localization]

28.3.4 Standard locale categories [locale.categories]

28.3.4.2 The ctype category [category.ctype]

28.3.4.2.5 Class template codecvt [locale.codecvt]

28.3.4.2.5.3 Virtual functions [locale.codecvt.virtuals]

Table 89: do_unshift result values [tab:locale.codecvt.unshift]
Value
Meaning
ok
completed the sequence
partial
space for more than to_end - to destination elements was needed to terminate a sequence given the value of state
error
an unspecified error has occurred
noconv
no termination is needed for this state_type