special.c: (in function f)
special.c:17:34: Variable c used before definition
special.c:19:31: Format argument 1 to printf (%d) expects int gets long int: li
   special.c:19:17: Corresponding format code
special.c:20:46: Format argument 2 to printf (%d) expects int gets long int: li
   special.c:20:21: Corresponding format code
special.c:20:50: Format argument 3 to printf (%hd) expects short int gets int:
                    i
   special.c:20:25: Corresponding format code
special.c:27:19: Variable s used before definition
special.c:29:28: Format argument 1 to printf (%+14.3i) expects int gets char: c
   special.c:29:24: Corresponding format code
special.c:29:3: Format string for printf has 1 arg, given 2
special.c:30:38: Format argument 1 to fprintf (%+14.33i) expects int gets char:
                    c
   special.c:30:34: Corresponding format code
special.c:30:3: Format string for fprintf has 1 arg, given 2
special.c:31:25: Format argument 1 to printf (%d) expects int gets char: c
   special.c:31:15: Corresponding format code
special.c:31:28: Format argument 2 to printf (%f) expects double gets int: i
   special.c:31:18: Corresponding format code
special.c:31:3: No argument corresponding to printf format code 3 (%f):
                   "%% %d %f %f"
   special.c:31:21: Corresponding format code
special.c:34:40: Format argument 1 to scanf (%d) expects int * gets int: i
   special.c:34:36: Corresponding format code
special.c:37:54: Format argument 1 to fscanf (%d) expects int * gets int: i
   special.c:37:44: Corresponding format code
special.c:37:57: Format argument 2 to fscanf (%c) expects char * gets char: c
   special.c:37:47: Corresponding format code
special.c:37:60: Format argument 3 to fscanf (%s) expects char * gets char **:
                    &s
   special.c:37:50: Corresponding format code
special.c:40:10: Undocumented modification of gi possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %23d %c %s", &gi, &gc, gs)
special.c:40:10: Undocumented modification of gc possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %23d %c %s", &gi, &gc, gs)
special.c:40:10: Undocumented modification of gs possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %23d %c %s", &gi, &gc, gs)
special.c:42:10: Undocumented modification of gs possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %*23d %*c %s", gs)

Finished checking --- 20 code warnings, as expected

special.c: (in function f)
special.c:17:34: Variable c used before definition
special.c:19:31: Format argument 1 to printf (%d) expects int gets long int: li
   special.c:19:17: Corresponding format code
special.c:20:43: Format argument 1 to printf (%ld) expects long int gets int: i
   special.c:20:18: Corresponding format code
special.c:20:46: Format argument 2 to printf (%d) expects int gets long int: li
   special.c:20:21: Corresponding format code
special.c:20:50: Format argument 3 to printf (%hd) expects short int gets int:
                    i
   special.c:20:25: Corresponding format code
special.c:20:60: Format argument 5 to printf (%d) expects int gets short int:
                    silly
   special.c:20:32: Corresponding format code
special.c:27:19: Variable s used before definition
special.c:29:28: Format argument 1 to printf (%+14.3i) expects int gets char: c
   special.c:29:24: Corresponding format code
special.c:29:3: Format string for printf has 1 arg, given 2
special.c:30:38: Format argument 1 to fprintf (%+14.33i) expects int gets char:
                    c
   special.c:30:34: Corresponding format code
special.c:30:3: Format string for fprintf has 1 arg, given 2
special.c:31:25: Format argument 1 to printf (%d) expects int gets char: c
   special.c:31:15: Corresponding format code
special.c:31:28: Format argument 2 to printf (%f) expects double gets int: i
   special.c:31:18: Corresponding format code
special.c:31:3: No argument corresponding to printf format code 3 (%f):
                   "%% %d %f %f"
   special.c:31:21: Corresponding format code
special.c:34:40: Format argument 1 to scanf (%d) expects int * gets int: i
   special.c:34:36: Corresponding format code
special.c:37:54: Format argument 1 to fscanf (%d) expects int * gets int: i
   special.c:37:44: Corresponding format code
special.c:37:57: Format argument 2 to fscanf (%c) expects char * gets char: c
   special.c:37:47: Corresponding format code
special.c:37:60: Format argument 3 to fscanf (%s) expects char * gets char **:
                    &s
   special.c:37:50: Corresponding format code
special.c:40:10: Undocumented modification of gi possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %23d %c %s", &gi, &gc, gs)
special.c:40:10: Undocumented modification of gc possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %23d %c %s", &gi, &gc, gs)
special.c:40:10: Undocumented modification of gs possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %23d %c %s", &gi, &gc, gs)
special.c:42:10: Undocumented modification of gs possible from call to fscanf:
                    fscanf(stdin, "hullo, welcome to %*23d %*c %s", gs)

Finished checking --- 22 code warnings, as expected