strlwr() function in C String converts all the characters present in a given string to Lowercase.
The strlwr() function is defined in the header file
It takes a single argument that is the name of the string and is written as follows.
C Program for strlwr() function
char str = "SIMple2CODe.CoM";
printf("Original String: %s", str);
printf("Lowercasing all the Characters: %s", strlwr(str));
Don’t be alarmed if it does not run on your compiler. It is just that some functions like strlwr(), which are only available in ANSI C (Turbo C/C++) and are not available in the standard C-GCC compiler.
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