TOASCII(3) Linux Programmer's Manual TOASCII(3) NAME toascii - convert character to ASCII SYNOPSIS #include <ctype.h> int toascii(int c); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): toascii(): _XOPEN_SOURCE || /* Glibc since 2.19: */ _DEFAULT_SOURCE || /* Glibc <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE DESCRIPTION toascii() converts c to a 7-bit unsigned char value that fits into the ASCII character set, by clearing the high-order bits. RETURN VALUE The value returned is that of the converted character. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┼───────────────┼─────────┤ │toascii() │ Thread safety │ MT-Safe │ └──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴───────────────┴─────────┘ CONFORMING TO SVr4, BSD, POSIX.1-2001. POSIX.1-2008 marks toascii() as obsolete, noting that it cannot be used portably in a localized application. BUGS Many people will be unhappy if you use this function. This function will convert accented letters into random characters. SEE ALSO isascii(3), tolower(3), toupper(3) GNU 2021-03-22 TOASCII(3)