toupper

 

C

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Strings library

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Functions
Character manipulation
isalnum isalpha islower isupper isdigit isxdigit isblank (C++11)	iscntrl isgraph isspace isprint ispunct tolower toupper
Conversions to numeric formats
atof atoi atol atoll strtol strtoll	strtoul strtoull strtof strtod strtold
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strlen strcmp strncmp strcoll strchr strrchr	strspn strcspn strpbrk strstr strtok
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memchr
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Miscellaneous
strerror

 

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

Converts the given character to uppercase.

Parameters

ch

-

character to be converted

Return value

Converted character or ch if no such conversion was possible

See also

tolower	converts a character to lowercase (function)
towupper	converts a wide character to uppercase (function)