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POC Convert String to Ints Issue
primarykey
Id
1205945
data
AcceptedAnswerId
1206439
AnswerCount
4
ClosedDate
CommentCount
5
CommunityOwnedDate
CreationDate
2009-07-30T11:15:29.797
FavoriteCount
0
LastActivityDate
2009-08-02T07:24:06.780
LastEditDate
2009-08-02T07:24:06.780
LastEditorUserId
15168
OwnerUserId
106623
ParentId
0
PostTypeId
1
Score
1
ViewCount
655
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text
Body
I'm trying to parse some input on an embedded system. I'm expecting something like this: <pre><code>SET VARNAME=1,2,3,4,5,6,7,8,9,10\0 </code></pre> When I'm converting the separate strings to ints, both <code>atoi()</code> and <code>strtol()</code> seem to be returning 0 if the string begins with 8. Here is my code: <pre><code>char *pch, *name, *vars; signed long value[256]; int i; #ifdef UARTDEBUG char convert[100]; #endif if(strncmp(inBuffer, "SET",3)==0) { pch = strtok(inBuffer," "); pch = strtok(NULL," "); name = strtok(pch, "="); vars = strtok(NULL,"="); pch = strtok(vars,","); i = 0; while(pch != NULL) { value[i] = atoi(pch); #ifdef UARTDEBUG snprintf(convert, sizeof(convert), "Long:%d=String:\0", value[i]); strncat(convert, pch, 10); SendLine(convert); #endif i++; pch = strtok(NULL,","); // Check for overflow if(i > sizeof(value)-1) { return; } } SetVariable(name, value, i); } </code></pre> Passing it: <pre><code>SET VAR=1,2,3,4,5,6,7,8,9,10\0 </code></pre> gives the following in my uart debug: <pre><code>Long:1=String:1 Long:2=String:2 Long:3=String:3 Long:4=String:4 Long:5=String:5 Long:6=String:6 Long:7=String:7 Long:0=String:8 Long:9=String:9 Long:10=String:10 </code></pre> UPDATE: I've checked the inBuffer both before and after 'value[i] = atoi(pch);' and it's identical and appears to have been split up to the right point. <pre><code>S E T V A R 1 2 3 4 5 6 7 8 9 , 1 0 53 45 54 00 56 41 52 00 31 00 32 00 33 00 34 00 35 00 36 00 37 00 38 00 39 2c 31 30 00 00 00 00 </code></pre> UPDATE 2: My UARTDEBUG section currently reads: <pre><code> #ifdef UARTDEBUG snprintf(convert, 20, "Long:%ld=String:%s", value[i], pch); SendLine(convert); #endif </code></pre> If I comment out the <code>snprintf()</code> line, everything works perfectly. So what's going on with that?
Tags
<c><string><atoi>
Title
C Convert String to Ints Issue
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USJonathan Leffler
UserOwnerUserId
1. USTim
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PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. PL
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 LTLinked
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
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 PTAnswer
3. PO
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 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
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 POC Convert String to Ints Issue
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CommentsPostId

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