Last change
on this file since 413 was 398, checked in by coas-nagasima, 5 years ago |
mbedTLS版Azure IoT Hub接続サンプルのソースコードを追加
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Property svn:eol-style
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Property svn:mime-type
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File size:
358 bytes
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Rev | Line | |
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[398] | 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 |
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| 5 | char *ecvt(double x, int n, int *dp, int *sign)
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| 6 | {
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| 7 | static char buf[16];
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| 8 | char tmp[32];
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| 9 | int i, j;
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| 10 |
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| 11 | if (n-1U > 15) n = 15;
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| 12 | sprintf(tmp, "%.*e", n-1, x);
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| 13 | i = *sign = (tmp[0]=='-');
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| 14 | for (j=0; tmp[i]!='e'; j+=(tmp[i++]!='.'))
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| 15 | buf[j] = tmp[i];
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| 16 | buf[j] = 0;
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| 17 | *dp = atoi(tmp+i+1)+1;
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| 18 |
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| 19 | return buf;
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| 20 | }
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