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POC Convert String to Ints Issue
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copied!<p>I'm trying to parse some input on an embedded system. I'm expecting something like this:</p> <pre><code>SET VARNAME=1,2,3,4,5,6,7,8,9,10\0 </code></pre> <p>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.</p> <p>Here is my code:</p> <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> <p>Passing it:</p> <pre><code>SET VAR=1,2,3,4,5,6,7,8,9,10\0 </code></pre> <p>gives the following in my uart debug:</p> <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> <p><strong>UPDATE:</strong></p> <p>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.</p> <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> <p><strong>UPDATE 2:</strong></p> <p>My UARTDEBUG section currently reads:</p> <pre><code> #ifdef UARTDEBUG snprintf(convert, 20, "Long:%ld=String:%s", value[i], pch); SendLine(convert); #endif </code></pre> <p>If I comment out the <code>snprintf()</code> line, everything works perfectly. So what's going on with that?</p>

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