Thread: toupper() for strings?

  1. #1
    Registered User Dual-Catfish's Avatar
    Join Date
    Sep 2001

    toupper() for strings?

    I searched the board, to no avail. Is there a function which will convert a string of chars to uppercase? I tried creating my own function... but i'm pretty sure i'm going about it the wrong way...

    I tried using a subscript on the pszText variable, but seeing as i'm using a refrence, it doesn't work, and I don't want to return a pointer to a character array either. Here's my messed up code

    void MakeStringUpper(char &pszText)
    	for (int i = 0; i <= strlen((char *)pszText); i++)
    		strcat(&pszText + (sizeof(char) * i), toupper(&pszText + (sizeof(char) * i)));

  2. #2
    Just because ygfperson's Avatar
    Join Date
    Jan 2002
    PHP Code:
    #include <stdio.h>

    int main() {
    char hemp[30] = "this is A TEST";


    void toUpperString (char temp) {
      while (*
    temp) {
        if (
    islower(*temp)) *temp toupper(*temp);



    compiled and tested.

  3. #3
    l'Anziano DavidP's Avatar
    Join Date
    Aug 2001
    Plano, Texas, United States
    there is a function in string.h to do it:

    char *strupr(char *s);
    My Website

    "Circular logic is good because it is."

  4. #4
    End Of Line Hammer's Avatar
    Join Date
    Apr 2002
    Originally posted by DavidP
    there is a function in string.h to do it:

    char *strupr(char *s);
    There might be in your compiler, but I don't believe it's in the ANSI standard, so not everyone will have it.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

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