TOASCIISection: Linux Programmer's Manual (3)
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NAMEtoascii - convert character to ASCII
#include <ctype.h> int toascii(int c);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
DESCRIPTIONtoascii() converts c to a 7-bit unsigned char value that fits into the ASCII character set, by clearing the high-order bits.
RETURN VALUEThe value returned is that of the converted character.
CONFORMING TOSVr4, BSD, POSIX.1-2001. POSIX.1-2008 marks toascii() as obsolete, noting that it cannot be use portably in a localized application.
BUGSMany people will be unhappy if you use this function. This function will convert accented letters into random characters.
SEE ALSOisascii(3), tolower(3), toupper(3)
COLOPHONThis page is part of release 3.21 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.