以下程序是否符合C99标准的“严格符合程序”？

#include <stdlib.h>
/* Removing any pre-existing macro definition,in case one should exist in the implementation.
 * Seems to be allowed under 7.1.3 para 3,as malloc does not begin with _X where X is any  capital letter.
 * And 7.1.4 para 1 explicitly permits #undef of such macros.
 */
#ifdef malloc    
#undef malloc     
#endif            

/* Macro substitution has no impact on the external name malloc
 * which remains accessible,e.g.,via "(malloc)(s)".  Such use of
 * macro substitution seems enabled by 7.1.4 para 1,but not specifically
 * mentioned otherwise.
 */
void * journalling_malloc(size_t size);
#define malloc(s)     ((journalling_malloc)(s))      

int main(void)
{
    return malloc(10) == NULL ? 1 : 0;     
    /* Just for the sake of expanding the 
     * macro one time,return as exit code
     * whether the allocation was performed. 
     */
}