tolower
From cppreference.com
| Defined in header <ctype.h>
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| int tolower( int ch ); |
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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.
Contents |
Parameters
| ch | - | character to be converted |
Return value
Lowercase version of ch or unmodified ch if no lowercase version is listed in the current C locale.
Example
Run this code
#include <stdio.h> #include <ctype.h> #include <locale.h> int main() { char c = '\xb4'; // the character Ž in ISO-8859-15 // but ´ (acute accent) in ISO-8859-1 unsigned char c2 = c; // for printing setlocale(LC_ALL, "en_US.iso88591"); printf("in iso8859-1, tolower('0x%x') gives 0x%x\n", c2, tolower(c)); setlocale(LC_ALL, "en_US.iso885915"); printf("in iso8859-15, tolower('0x%x') gives 0x%x\n", c2, tolower(c)); }
Output:
in iso8859-1, tolower('0xb4') gives 0xb4
in iso8859-15, tolower('0xb4') gives 0xb8See also
| converts a character to uppercase (function) | |
| (C95) |
converts a wide character to lowercase (function) |
| C++ documentation for tolower
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