Databases
StackOverflow2013
Postsdbo
POSegmentation Error using strtok
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POSegmentation Error using strtok
    primarykey
    data
    text
    <p>Trying to split a string using delimiter " " using strtok, but I am getting a segmentation error. </p> <pre><code> char command[12]; char *instruction; char *parameter_1; char *parameter_2; *instruction = strtok(command, " ,.-"); *parameter_1 = strtok(NULL, " ,.-"); *parameter_2 = strtok(NULL, " ,.-"); write(1,parameter_1,sizeof(parameter_1)); </code></pre> <p>at the point in th</p> <p>EDIT: As requested, compiler warnings. Not using int anywhere, so confused.</p> <pre><code>shell.c:51:16: warning: assignment makes integer from pointer without a cast [enabled by default] shell.c:52:16: warning: assignment makes integer from pointer without a cast [enabled by default] shell.c:53:16: warning: assignment makes integer from pointer without a cast [enabled by default] Command: abd def ghj Segmentation fault (core dumped) </code></pre> <p><strong>EDIT 2:</strong></p> <pre><code>int prompt() { // Get Input char inputData[256]; int rid; rid = read(0,inputData,256); // Strip input char command[rid]; int i; for (i = 0; i&lt;=rid-2; i++) { command[i] = inputData[i]; } command[rid-1] = '\0'; // Debug // printf("\n-%c-%i\n",command[10],(int)sizeof(command)); // write(1,command,sizeof(command)); if (strcmp(command, "exit") == 0) { break; } char *instruction; char *parameter_1; char *parameter_2; instruction = strtok(command, " "); parameter_1 = strtok(NULL, " "); parameter_2 = strtok(NULL, " "); write(1,instruction,sizeof(instruction)); //write(1,parameter_2,sizeof(parameter_2)); } return 0; </code></pre> <p>}</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USSam Heather
    1. USSam Heather
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COCompile with warnings enabled. Paste compilable example, there may be subtleties not shown in partial code snippet. Https://sscce.org
      singulars
      1. POSegmentation Error using strtok
      1. UShyde
    2. COAdditionally, the code snippet shown derefererences uninitialized pointers, which usually crashes right away.
      singulars
      1. POSegmentation Error using strtok
      1. UShyde
    3. COYup, turn on compiler warnings, then come back when you have eliminated all warnings ;)
      singulars
      1. POSegmentation Error using strtok
      1. USOliver Charlesworth
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload