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C Program to convert character(s) to uppercase using the toupper() Function | C Programs | Studytonight
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I'm trying to make a program to switch letter cases, from lower case to upper case and vice versus, but I can't get it to run through the first if statement, any
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Use the function toupper() in combination with the .strstr() function to find out whether one string occurs in another, ignoring case. - C String
