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digittoint(3) [osx man page]

DIGITTOINT(3)						   BSD Library Functions Manual 					     DIGITTOINT(3)

digittoint, digittoint_l -- convert a numeric character to its integer value LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <ctype.h> int digittoint(int c); #include <xlocale.h> #include <ctype.h> int digittoint_l(int c, locale_t loc); DESCRIPTION
The digittoint() function converts a numeric character to its corresponding integer value. The character can be any decimal digit or hexa- decimal digit. With hexadecimal characters, the case of the values does not matter. While the digittoint() function uses the current locale, the digittoint_l() function may be passed a locale directly. See xlocale(3) for more information. RETURN VALUES
The digittoint() function always returns an integer from the range of 0 to 15. If the given character was not a digit as defined by isxdigit(3), the function will return 0. SEE ALSO
ctype(3), isdigit(3), isxdigit(3), xlocale(3) BSD
April 6, 2001 BSD

Check Out this Related Man Page

CTYPE(3)						   BSD Library Functions Manual 						  CTYPE(3)

digittoint, isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, ishexnumber, isideogram, islower, isnumber, isphonogram, isprint, ispunct, isrune, isspace, isspecial, isupper, isxdigit, toascii, tolower, toupper -- character classification macros LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <ctype.h> int digittoint(int c); int isalnum(int c); int isalpha(int c); int isascii(int c); int iscntrl(int c); int isdigit(int c); int isgraph(int c); int ishexnumber(int c); int isideogram(int c); int islower(int c); int isnumber(int c); int isphonogram(int c); int isspecial(int c); int isprint(int c); int ispunct(int c); int isrune(int c); int isspace(int c); int isupper(int c); int isxdigit(int c); int toascii(int c); int tolower(int c); int toupper(int c); DESCRIPTION
The above functions perform character tests and conversions on the integer c. They are available as macros, defined in the include file <ctype.h>, or as true functions in the C library. See the specific manual pages for more information. Extended locale versions of these functions are documented in ctype_l(3). See xlocale(3) for more information. SEE ALSO
digittoint(3), isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3), isideogram(3), islower(3), isphonogram(3), isprint(3), ispunct(3), isrune(3), isspace(3), isspecial(3), isupper(3), isxdigit(3), toascii(3), tolower(3), toupper(3), wctype(3), ascii(7), ctype_l(3) STANDARDS
These functions, except for digittoint(), isascii(), ishexnumber(), isideogram(), isnumber(), isphonogram(), isrune(), isspecial() and toascii(), conform to ISO/IEC 9899:1990 (``ISO C90''). BSD
March 30, 2004 BSD
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