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diff --git a/reference/C/MAN/toupper.htm b/reference/C/MAN/toupper.htm new file mode 100644 index 0000000..346390a --- /dev/null +++ b/reference/C/MAN/toupper.htm @@ -0,0 +1,99 @@ +<TITLE>toupper</TITLE> +<body bgcolor="#ffffcc"> +<hr> +<pre> + + + +<h3>TOUPPER(3) Linux Programmer's Manual TOUPPER(3) +</h3> + +<h3>NAME +</h3> toupper, tolower - convert letter to upper or lower case + +<h3>SYNOPSIS +</h3> #include <ctype.h> + + int toupper (int c); + int tolower (int c); + +<h3>DESCRIPTION +</h3> toupper() converts the letter c to upper case, if possi- + ble. + + tolower() converts the letter c to lower case, if possi- + ble. + +<h3>RETURN VALUE +</h3> The value returned is that of the converted letter, or c + if the conversion was not possible. + +<h3>CONFORMS TO +</h3> ANSI - C, BSD 4.3 + +<h3>BUGS +</h3> The details of what constitutes an uppercase or lowercase + letter depend on the current locale. For example, the + default "C" locale does not know about umlauts, so no con- + version is done for them. + + In some non - English locales, there are lowercase letters + with no corresponding uppercase equivalent; the German + sharp s is one example. + +</pre> +<hr> +<h3>SEE ALSO +</h3><p> +<a href=../EXAMPLES/is_examp.c>isalpha</a>, +<a href=setlocale.htm>setlocale</a>, +<a href=locale.htm>locale</a>, +<pre> + + + + + + + + + + + + + + + + + + + + + + +<h3>GNU April 4, 1993 1 +</h3> + +
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