ctype.h


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#include <ctype.h>, syntax at the beginning of our code, means we automatically included these (pre-defined) functions in our program:



int toupper(int ch);
int tolower(int ch);
int isdigit(int c);
figure (0-9)
int isalpha(int c);
letter (A-Z or a-z)
int isalnum(int c);
letter (A-Z or a-z) or figure (0-9)
int isprint(int c);
character which can be printed (0x20-0x7E)
int iscntrl(int c);
control char (0x7F or 0x00-0x1F)
int isspace(int c);
empty space
int islower(int c);
letter (a-z)
int isupper(int c);
letter (A-Z)








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2 Responses to “ctype.h”

  1. Anonymous P.Lokesh Kumar 

    i want header file for showbits() function. please tell me.

  2. Anonymous Mukesh 

    Pleae let me know, if came accross for header file for showbits

    mmechu@india.tejasnetworks.com

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