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      <metanoindex/>

       
      C
       
      Strings Bibliothek
       
      Null-terminierte Byte-Strings
      Funktionen
      Original:
      Functions
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      Character Manipulation
      Original:
      Character manipulation
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      Umwandlungen in numerische Formate
      Original:
      Conversions to numeric formats
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      String-Manipulation
      Original:
      String manipulation
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      strcpy
      strncpy
      strcat
      strncat
      strxfrm
      String Prüfung
      Original:
      String examination
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      Speicher Manipulation
      Original:
      Memory manipulation
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      memchr
      memcmp
      memset
      memcpy
      memmove
      Verschiedenes
      Original:
      Miscellaneous
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      strerror
       
      <tbody> </tbody>
      definiert in Header <ctype.h>
      int isalpha( int ch );
      Prüft, ob die angegebene Zeichen ist ein Buchstabe, dh entweder ein Großbuchstabe (ABCDEFGHIJKLMNOPQRSTUVWXYZ) oder ein Kleinbuchstabe (abcdefghijklmnopqrstuvwxyz) .
      Original:
      Checks if the given character is an alphabetic character, i.e. either an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), or a lowercase letter (abcdefghijklmnopqrstuvwxyz).
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      Parameter

      ch -
      Charakter
      Original:
      character
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      Rückgabewert

      Nicht-Null-Wert (true), wenn das Zeichen ein alphabetisches Zeichen ist, 0 (false) ansonsten .
      Original:
      Non-zero value (true) if the character is an alphabetic character, 0 (false) otherwise.
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      Siehe auch
      prüft, ob eine breite Buchstaben handelt
      Original:
      checks if a wide character is alphabetic
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      (Funktion)
      C++ documentation for isalpha
      ASCII values
      (hex)       		characters

      iscntrl
      iswcntrl

      isprint
      iswprint

      isspace
      iswspace

      isblank
      iswblank

      isgraph
      iswgraph

      ispunct
      iswpunct

      isalnum
      iswalnum

      isalpha
      iswalpha

      isupper
      iswupper

      islower
      iswlower

      isdigit
      iswdigit

      isxdigit
      iswxdigit

      0 - 8 0x00-0x08 control codes (NUL, etc.) ≠0 0 0 0 0 0 0 0 0 0 0 0
      9 0x09 tab (\t) ≠0 0 ≠0 ≠0 0 0 0 0 0 0 0 0
      10 - 13 0x0A-0x0D whitespaces (\n,\v,\f,\r) ≠0 0 ≠0 0 0 0 0 0 0 0 0 0
      14 - 31 0x0E-0x1F control codes ≠0 0 0 0 0 0 0 0 0 0 0 0
      32 0x20 space 0 ≠0 ≠0 ≠0 0 0 0 0 0 0 0 0
      33 - 47 0x21-0x2F !"#$%&'()*+,-./ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
      48 - 57 0x30-0x39 0123456789 0 ≠0 0 0 ≠0 0 ≠0 0 0 0 ≠0 ≠0
      58 - 64 0x3a-0x40 :;<=>?@ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
      65 - 70 0x41-0x46 ABCDEF 0 ≠0 0 0 ≠0 0 ≠0 ≠0 ≠0 0 0 ≠0
      71 - 90 0x47-0x5A GHIJKLMNOPQRSTUVWXYZ 0 ≠0 0 0 ≠0 0 ≠0 ≠0 ≠0 0 0 0
      91 - 96 0x5B-0x60 [\]^_` 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
      97 -102 0x61-0x66 abcdef 0 ≠0 0 0 ≠0 0 ≠0 ≠0 0 ≠0 0 ≠0
      103-122 0x67-0x7A ghijklmnopqrstuvwxyz 0 ≠0 0 0 ≠0 0 ≠0 ≠0 0 ≠0 0 0
      123-126 0x7B-0x7E {|}~ 0 ≠0 0 0 ≠0 ≠0 0 0 0 0 0 0
      127 0x7F backspace character (DEL) ≠0 0 0 0 0 0 0 0 0 0 0 0