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  1. #include <stdio.h>
  2. #include <stdarg.h>
  3.  
  4. void pxy_conn_ctx_trace(const char* format, ...)
  5. {
  6.     char result[2] = {};
  7.  
  8.     result[0] = '1';
  9.     result[1] = '1';
  10.  
  11. 	va_list ap;
  12. 	va_start(ap, format);
  13. 	const int written = vsnprintf(result, 2, format, ap);
  14. 	va_end(ap);
  15.  
  16. 	printf("written = %d\n", written);
  17. 	printf("result: '%s'\n", result);
  18. }
  19.  
  20. int main() {
  21.   pxy_conn_ctx_trace("%d", 32768);
  22.  
  23.   return 0;
  24. }
  25.  
Success #stdin #stdout 0s 5280KB
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stdin
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Standard input is empty
stdout
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written = 5
result: '3'
https://ideone.com/dTMvT9
language:
C (gcc 8.3)
created:
279 days ago
visibility:
public

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