31 lines
697 B
C
31 lines
697 B
C
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#include <stdio.h>
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#include <string.h>
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int my_strcmp(const char *a, const char *b)
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{
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while ( *a && *b && *a == *b )
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++a, ++b;
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return *a - *b;
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}
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void Print(char* str,int res)
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{
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printf(str, res==0 ? "equal to" : res<0 ? "less" : "greater than");
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}
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int main(void)
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{
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char *a = "abcde",
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*b = "xyz",
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*c = "abcd",
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*d = "xyz";
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printf("A = %s\nB = %s\nC = %s\nD = %s\n\n", a, b, c, d);
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Print("A is %s B\n",my_strcmp(a,b));
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Print("A is %s D\n",my_strcmp(a,d));
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Print("A is %s C\n",my_strcmp(a,c));
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Print("B is %s C\n",my_strcmp(b,c));
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Print("B is %s D\n",my_strcmp(b,d));
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Print("C is %s D\n",my_strcmp(c,d));
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return 0;
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}
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