1 | /* |
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2 | FUNCTION |
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3 | <<atoi>>, <<atol>>---string to integer |
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4 | |
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5 | INDEX |
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6 | atoi |
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7 | INDEX |
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8 | atol |
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9 | INDEX |
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10 | _atoi_r |
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11 | INDEX |
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12 | _atol_r |
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13 | |
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14 | SYNOPSIS |
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15 | #include <stdlib.h> |
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16 | int atoi(const char *<[s]>); |
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17 | long atol(const char *<[s]>); |
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18 | int _atoi_r(struct _reent *<[ptr]>, const char *<[s]>); |
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19 | long _atol_r(struct _reent *<[ptr]>, const char *<[s]>); |
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20 | |
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21 | DESCRIPTION |
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22 | <<atoi>> converts the initial portion of a string to an <<int>>. |
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23 | <<atol>> converts the initial portion of a string to a <<long>>. |
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24 | |
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25 | <<atoi(s)>> is implemented as <<(int)strtol(s, NULL, 10).>> |
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26 | <<atol(s)>> is implemented as <<strtol(s, NULL, 10).>> |
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27 | |
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28 | <<_atoi_r>> and <<_atol_r>> are reentrant versions of <<atoi>> and |
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29 | <<atol>> respectively, passing the reentrancy struct pointer. |
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30 | |
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31 | RETURNS |
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32 | The functions return the converted value, if any. If no conversion was |
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33 | made, <<0>> is returned. |
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34 | |
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35 | PORTABILITY |
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36 | <<atoi>>, <<atol>> are ANSI. |
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37 | |
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38 | No supporting OS subroutines are required. |
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39 | */ |
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40 | |
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41 | /* |
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42 | * Andy Wilson, 2-Oct-89. |
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43 | */ |
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44 | |
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45 | #include <stdlib.h> |
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46 | #include <_ansi.h> |
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47 | |
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48 | #ifndef _REENT_ONLY |
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49 | int |
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50 | atoi (const char *s) |
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51 | { |
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52 | return (int) strtol (s, NULL, 10); |
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53 | } |
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54 | #endif /* !_REENT_ONLY */ |
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55 | |
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56 | int |
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57 | _atoi_r (struct _reent *ptr, |
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58 | const char *s) |
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59 | { |
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60 | return (int) _strtol_r (ptr, s, NULL, 10); |
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61 | } |
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62 | |
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