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22 lines
454 B
D
22 lines
454 B
D
module bug55;
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extern(C) int printf(char*, ...);
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int atoi(char[] s) {
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int i, fac=1;
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bool neg = (s.length) && (s[0] == '-');
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char[] a = neg ? s[1..$] : s;
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foreach_reverse(c; a) {
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i += (c-'0') * fac;
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fac *= 10;
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}
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return !neg ? i : -i;
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}
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void main()
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{
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printf("64213 = %d\n", atoi("64213"));
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printf("-64213 = %d\n", atoi("-64213"));
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assert(atoi("64213") == 64213);
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assert(atoi("-64213") == -64213);
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}
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