26 lines
348 B
Plaintext
26 lines
348 B
Plaintext
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atoi(str)
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{
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local i;
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local sign;
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local out;
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out = 0;
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sign = 0;
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i = 0;
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loop {
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if ([str + i] == '-')
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sign = sign == 0;
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else if ([str + i] != '+')
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break;
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i = i + 1;
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}
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loop {
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if ([str + i] == 0 | isdigit([str + i]) == 0)
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break;
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out = out * 10 + [str + i] - '0';
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i = i + 1;
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}
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if (sign)
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return (0 - out);
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return out;
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}
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