From 82ba818ff456bcd6d56a06226e3f27e98fbb55c3 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Thu, 14 Aug 2025 22:58:58 -0500 Subject: removing all downloaded devdocs files --- devdocs/c/string%2Fbyte%2Ftolower.html | 49 ---------------------------------- 1 file changed, 49 deletions(-) delete mode 100644 devdocs/c/string%2Fbyte%2Ftolower.html (limited to 'devdocs/c/string%2Fbyte%2Ftolower.html') diff --git a/devdocs/c/string%2Fbyte%2Ftolower.html b/devdocs/c/string%2Fbyte%2Ftolower.html deleted file mode 100644 index 5e9a1f90..00000000 --- a/devdocs/c/string%2Fbyte%2Ftolower.html +++ /dev/null @@ -1,49 +0,0 @@ -

tolower

Defined in header <ctype.h> 
int tolower( int ch );
-

Converts the given character to lowercase according to the character conversion rules defined by the currently installed C locale.

-

In the default "C" locale, the following uppercase letters ABCDEFGHIJKLMNOPQRSTUVWXYZ are replaced with respective lowercase letters abcdefghijklmnopqrstuvwxyz.

-

Parameters

- -
ch - character to be converted. If the value of ch is not representable as unsigned char and does not equal EOF, the behavior is undefined.

Return value

Lowercase version of ch or unmodified ch if no lowercase version is listed in the current C locale.

-

Example

#include <stdio.h>
-#include <ctype.h>
-#include <locale.h>
-#include <limits.h>
- 
-int main(void)
-{
-    /* In the default locale: */
-    for (unsigned char u = 0; u < UCHAR_MAX; u++) {
-        unsigned char l = tolower(u);
-        if (l != u) printf("%c%c ", u, l);
-    }
-    printf("\n\n");
- 
-    unsigned char c = '\xb4'; // the character Ž in ISO-8859-15
-                              // but ´ (acute accent) in ISO-8859-1
-    setlocale(LC_ALL, "en_US.iso88591");
-    printf("in iso8859-1, tolower('0x%x') gives 0x%x\n", c, tolower(c));
-    setlocale(LC_ALL, "en_US.iso885915");
-    printf("in iso8859-15, tolower('0x%x') gives 0x%x\n", c, tolower(c));
-}

Possible output:

-
Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm Nn Oo Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz
- 
-in iso8859-1, tolower('0xb4') gives 0xb4
-in iso8859-15, tolower('0xb4') gives 0xb8

References

See also

- - -
converts a character to uppercase
(function)
-
(C95)
 converts a wide character to lowercase
(function)
C++ documentation for tolower
-

- © cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
- https://en.cppreference.com/w/c/string/byte/tolower -

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