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Annotation of coherent/a/usr/man/ALL/tolower, revision 1.1.1.1

1.1       root        1: 
                      2: 
                      3: tolower()                  ctype Macro                  tolower()
                      4: 
                      5: 
                      6: 
                      7: 
                      8: Convert characters to lower case
                      9: 
                     10: #iinncclluuddee <ccttyyppee.hh>
                     11: iinntt ttoolloowweerr(_c) iinntt _c;
                     12: 
                     13: tolower converts  the letter c to lower  case.  tolower returns c
                     14: converted to  lower case.   If c  is not a  letter or  is already
                     15: lower case, then tolower returns it unchanged.
                     16: 
                     17: ***** Example *****
                     18: 
                     19: The  following  example  demonstrates  tolower and  toupper.   It
                     20: reverses the case of every character in a text file.
                     21: 
                     22: 
                     23: #include <ctype.h>
                     24: #include <stdio.h>
                     25: 
                     26: 
                     27: 
                     28: main()
                     29: {
                     30:         FILE *fp;
                     31:         int ch;
                     32:         int filename[20];
                     33: 
                     34: 
                     35: 
                     36:         printf("Enter name of file to use: ");
                     37:         fflush(stdout);
                     38:         gets(filename);
                     39: 
                     40: 
                     41: 
                     42:         if ((fp = fopen(filename,"r")) != NULL) {
                     43:                 while ((ch = fgetc(fp)) != EOF)
                     44:                         putchar(isupper(ch) ? tolower(ch) : toupper(ch));
                     45:         } else
                     46:                  printf("Cannot open %s.\n", filename);
                     47: }
                     48: 
                     49: 
                     50: ***** See Also *****
                     51: 
                     52: ctype, toupper()
                     53: 
                     54: 
                     55: 
                     56: 
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                     60: 
                     61: 
                     62: 
                     63: 
                     64: COHERENT Lexicon                                           Page 1
                     65: 
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