#include <stdio.h> main() { int c, i, nwhite, nother; int ndigit[10]; nwhite = nother = 0; for (i = 0; i < 10; ++i) ndigit[i] = 0; while ((c = getchar()) != EOF) if (c >= '0' && c <= '9') ++ndigit[c - '0']; else if (c == '' || c == '\n' || c == '\t') ++nwhite; else ++nother; printf("digits = "); for (i = 0; i < 10; ++i) printf(" %d", ndigit[i]); printf(", white space = %d, other = %d\n", nwhite, nother); } |
amro:~/doc/c$ gcc -o 1.6.1.out 1.6.1.c 1.6.1.c:16:25: 错误: 空的字符常量 |
c == ''
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