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c:stdio.h:tmpnam

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c:stdio.h:tmpnam [2013/01/22 22:02] (current)
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 +{{keywords>wiki library source code example reference}}
 +
 +===== tmpnam =====
 +<code c>
 +    char *tmpnam(char *str);
 +</code>
 +
 +Assigns to s (if s non-null) and returns unique name for a temporary file. Unique name is returned for each of the first TMP_MAX invocations.
 +
 +===== C Sourcecode Example =====
 +<code c>
 +/* 
 + * tmpnam example code
 + * http://code-reference.com/c/stdio.h/tmpnam 
 + */
 +
 +#include <stdio.h> /* including standard library */
 +//#include <windows.h> /* uncomment this for Windows */
 +
 +
 +int main ( void ) 
 +{
 +FILE *tmpstream;
 +char *tmpfile;
 +
 +tmpfile = tmpnam(NULL);
 +tmpstream= fopen(tmpfile, "w");
 +
 +if ( tmpstream == NULL) {
 +  perror("Error opening tmp stream");
 +}
 +
 +fputs("Test for tmpnam", tmpstream);
 +
 +rename(tmpfile, "test.txt");
 +fclose(tmpstream);
 +return 0;
 +
 +}
 +
 +</code>
 +
 +content of test.txt after executing ./tmpnam
 +<code c>
 +Test for tmpnam
 +</code>
 +
 +==== output ====
 +    ./tmpnam 
 +
 +    
  
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c/stdio.h/tmpnam.txt · Last modified: 2013/01/22 22:02 (external edit)

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