122 lines
2.8 KiB
C
122 lines
2.8 KiB
C
#define NULL 0
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struct NAME {
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char first[40];
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char *middle;
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char *last;
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};
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struct NAMES {
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char first[40];
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char *middle;
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char *last;
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struct NAMES *next;
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};
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/******************* external variables *******************/
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int x = 0;
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int *xptr = &x;
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int xarray[3] = {10, 20, 30};
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struct {
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int x;
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int xarray[1000];
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} xstruct = {40};
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/*************** functions and auto variables **************/
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main()
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{
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char c;
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short s;
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int i;
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unsigned u;
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long l;
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float f;
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double d;
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for (;;) {
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for(c = 'A'; c <= 'Z'; c++) {
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s = c;
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i = s + 1;
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u = i + 1;
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l = u + 1;
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f = l + 1;
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d = f + 1;
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}
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func1();
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}
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}
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func1()
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{
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int i;
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char *strptr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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char string[27] = "abcdefghijklmnopqrstuvwxyz";
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char name[7][30] = { "George Armstrong Custer",
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"William F. Buckley",
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"Billy Bob Texas",
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"Daniel T. Boone",
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"Howard K. Smith",
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"Tommy Lee Jones",
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"Ronald MacDonald"};
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for (i = 25; i >= 0; i--) {
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*(strptr+i) = '\0';
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string[i] = i + 'A';
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}
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for (i = 0; i <= 25; i++) {
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string[i] = i + 'a';
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*(strptr+i) = i + 'A';
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}
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for (i = 0; i < 7; i++) func2(name[i]);
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}
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func2(string)
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char string[];
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{
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char *ptr;
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struct NAME name;
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strcpy(name.first, string);
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ptr = name.first;
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name.middle = NULL;
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name.last = NULL;
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while (*ptr) {
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if (*ptr == ' ') {
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*ptr++ = '\0';
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if (name.middle == NULL) name.middle = ptr;
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else if (name.last == NULL) name.last = ptr;
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}
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ptr++;
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}
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if (name.last == NULL) {
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if (name.middle != NULL) {
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name.last = name.middle;
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name.middle = ptr;
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}
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else name.last = name.middle = ptr;
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}
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func3(&name);
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}
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func3(name)
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struct NAME *name;
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{
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struct NAMES *temp;
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static struct NAMES *namelist;
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temp = calloc(1, sizeof(NAMES));
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if (temp != NULL) {
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movmem(name->first, temp->first, 40);
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temp->middle = temp->first + (name->middle - name->first);
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temp->last = temp->first + (name->last - name->first);
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temp->next = namelist;
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namelist = temp;
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x = x + 1;
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}
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temp = namelist;
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while (temp != NULL) {
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printf("%s ", temp->first);
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printf("%s ", temp->middle);
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puts(temp->last);
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temp = temp->next;
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}
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puts("-----------------------------");
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}
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