When using the system() function in C to run an executable with parameters, an error occurs if there are spaces in both the executable's path and the path of a file passed as a parameter. The error message reads:
The filename, directory name, or volume label syntax is incorrect.
The system() function executes system commands by passing them to the Windows command processor (cmd). When the command contains spaces, the command processor interprets everything between the first and last double quotes as a single argument. However, in this case, the double quotes around the executable's path and the double quotes around the parameter file path are causing a conflict.
To resolve the issue, an additional set of double quotes must be added to enclose the entire command. This way, the command processor treats everything within these outermost double quotes as a single argument, even though it contains spaces and other double quotes.
<code class="cpp">system("\"\"C:\Users\Adam\Desktop\pdftotext\" -layout \"C:\Users\Adam\Desktop\week 4.pdf\"\"");</code>
<code class="cpp">system("cmd /S /C \"\"D:\test\" nospaces \"text with spaces\"\"");</code>
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