source:
azure_iot_hub/trunk/musl-1.1.18/src/stdlib/ecvt.c
Last change on this file was 389, checked in by , 5 years ago | |
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File size: 358 bytes |
Rev | Line | |
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[388] | 1 | #define _GNU_SOURCE |
2 | #include <stdlib.h> | |
3 | #include <stdio.h> | |
4 | ||
5 | char *ecvt(double x, int n, int *dp, int *sign) | |
6 | { | |
7 | static char buf[16]; | |
8 | char tmp[32]; | |
9 | int i, j; | |
10 | ||
11 | if (n-1U > 15) n = 15; | |
12 | sprintf(tmp, "%.*e", n-1, x); | |
13 | i = *sign = (tmp[0]=='-'); | |
14 | for (j=0; tmp[i]!='e'; j+=(tmp[i++]!='.')) | |
15 | buf[j] = tmp[i]; | |
16 | buf[j] = 0; | |
17 | *dp = atoi(tmp+i+1)+1; | |
18 | ||
19 | return buf; | |
20 | } |
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