1 #include <io_utils.h>
2 #include <stdlib.h>
3 #include <errno.h>
4
5 int main() {
6 // PRINT_INT(atoi("1234")); // 1234
7 // PRINT_INT(atoi("-1234")); // -1234
8 // PRINT_INT(atoi(" 1234abcd")); // 1234
9 // PRINT_INT(atoi("0x10")); // 0
10 //
11 // PRINT_DOUBLE(atof("12.34")); // 12.34
12 // PRINT_DOUBLE(atof("-12e34")); // -1.2e+35
13 // PRINT_DOUBLE(atof(" 1.234abcd")); // 1.234
14 // PRINT_DOUBLE(atof("0x10")); // 16
15 // PRINT_DOUBLE(atof("0x10p3.9")); // 128
16
17 char const *const kInput = "1 200000000000000000000000000000 3 -4 5abcd bye";
18 PRINTLNF("Parse: %s", kInput);
19
20 char const *start = kInput;
21 char *end;
22
23 while (1) {
24 errno = 0;
25
26 const long i = strtol(start, &end, 10);
27
28 if (start == end) {
29 break;
30 }
31
32 printf("'%.*s'\t ==> %ld.", (int)(end - start), start, i);
33
34 if (errno == ERANGE) {
35 perror("");
36 }
37
38 putchar('\n');
39 start = end;
40 }
41
42 PRINTLNF("Left: %s", end);
43 return 0;
44 }
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标签：1234,end,start,DOUBLE,数值,C语言,PRINT,字符串,atof From： https://www.cnblogs.com/liumy/p/17112565.html