1TOASCII(3) Linux Programmer's Manual TOASCII(3)
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6 toascii - convert character to ASCII
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9 #include <ctype.h>
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11 int toascii(int c);
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13 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
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15 toascii(): _XOPEN_SOURCE
16 || /* Glibc since 2.19: */ _DEFAULT_SOURCE
17 || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE
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20 toascii() converts c to a 7-bit unsigned char value that fits into the
21 ASCII character set, by clearing the high-order bits.
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24 The value returned is that of the converted character.
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27 For an explanation of the terms used in this section, see
28 attributes(7).
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30 ┌──────────┬───────────────┬─────────┐
31 │Interface │ Attribute │ Value │
32 ├──────────┼───────────────┼─────────┤
33 │toascii() │ Thread safety │ MT-Safe │
34 └──────────┴───────────────┴─────────┘
36 SVr4, BSD, POSIX.1-2001. POSIX.1-2008 marks toascii() as obsolete,
37 noting that it cannot be used portably in a localized application.
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40 Many people will be unhappy if you use this function. This function
41 will convert accented letters into random characters.
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44 isascii(3), tolower(3), toupper(3)
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47 This page is part of release 5.04 of the Linux man-pages project. A
48 description of the project, information about reporting bugs, and the
49 latest version of this page, can be found at
50 https://www.kernel.org/doc/man-pages/.
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54GNU 2016-03-15 TOASCII(3)