Last change
on this file since 445 was 444, checked in by coas-nagasima, 4 years ago |
muslのソースコードを追加
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Property svn:eol-style
set to
native
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Property svn:mime-type
set to
text/x-csrc;charset=UTF-8
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File size:
454 bytes
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1 | #define _GNU_SOURCE
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2 | #include <stdlib.h>
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3 | #include <stdio.h>
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4 | #include <string.h>
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5 |
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6 | char *fcvt(double x, int n, int *dp, int *sign)
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7 | {
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8 | char tmp[1500];
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9 | int i, lz;
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10 |
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11 | if (n > 1400U) n = 1400;
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12 | sprintf(tmp, "%.*f", n, x);
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13 | i = (tmp[0] == '-');
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14 | if (tmp[i] == '0') lz = strspn(tmp+i+2, "0");
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15 | else lz = -(int)strcspn(tmp+i, ".");
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16 |
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17 | if (n<=lz) {
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18 | *sign = i;
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19 | *dp = 1;
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20 | if (n>14U) n = 14;
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21 | return "000000000000000"+14-n;
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22 | }
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23 |
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24 | return ecvt(x, n-lz, dp, sign);
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25 | }
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