strupr()

Converts a character string to uppercase.

  #include <extras/extras_string.h>
  
  char * strupr(char *str);

Parameter

str

A pointer to a null-terminated character string.

Remarks

This function converts all lowercase alphabetic characters at str to their uppercase counterparts. The function does not modify any other characters. The function returns a pointer to str.

This facility is not specified in the ISO/IEC standards. It is an EWL extension of the standard libraries.