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          • ▶C Run-Time Libraries
          • ▶Run-Time Routines by Category
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          • ▶Debug Function Reference
          • ▼Alphabetic Function Reference
            • ▶A Through B
            • ▶C Through D
            • ▶E Through F
            • ▶G Through H
            • ▼I Through K
              • _inp, _inpw, _inpd
              • is, isw Routines
              • isalnum, iswalnum
              • isalpha, iswalpha
              • __isascii, iswascii
              • iscntrl, iswcntrl
              • __iscsym, __iscsymf
              • isdigit, iswdigit
              • isgraph, iswgraph
              • islower, iswlower
              • isprint, iswprint
              • ispunct, iswpunct
              • isspace, iswspace
              • isupper, iswupper
              • iswctype
              • isxdigit, iswxdigit
              • _isatty
              • isleadbyte
              • _ismbb Routines
              • _ismbbalnum
              • _ismbbalpha
              • _ismbbgraph
              • _ismbbkalnum
              • _ismbbkana
              • _ismbbkprint
              • _ismbbkpunct
              • _ismbblead
              • _ismbbprint
              • _ismbbpunct
              • _ismbbtrail
              • _ismbc Routines
              • _ismbcalnum, _ismbcalpha, _ismbcdigit
              • _ismbcgraph, _ismbcprint, _ismbcpunct, _ismbcspace
              • _ismbchira, _ismbckata
              • _ismbcl0, _ismbcl1, _ismbcl2
              • _ismbclegal, _ismbcsymbol
              • _ismbclower, _ismbcupper
              • _ismbslead, _ismbstrail
              • _isnan
              • _itoa, _i64toa, _ui64toa, _itow, _i64tow, _ui64tow
              • _kbhit
            • ▶L Through M
            • ▶N Through O
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            • ▶V Through W
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