/* Time measurement function for an empty function call.
returns time in nano-seconds upon success,
and -1 upon failure.
Zero iterations number is invalid.
*/
double osm_function_time(unsigned int osm_iterations)
{
if(osm_iterations <= 0)
{
osm_iterations = OSM_DEFAULT_ITER;
}
timeval before, after, diff; // Time stamps
timezone defalutTimeZone; // TimeZone
int remaining = osm_iterations % LP_UNRLNG ? 1 : 0;
if(gettimeofday(&before,&defalutTimeZone) == FAILURE)
{
return FAILURE;
}
for(unsigned int i = 0; i < osm_iterations / LP_UNRLNG + remaining; ++i)
{
someFunction();
someFunction();
someFunction();
someFunction();
someFunction();
}
if(gettimeofday(&after,&defalutTimeZone) == FAILURE)
{
return FAILURE;
}
timersub(&after,&before,&diff);
return (double) ((diff.tv_sec * pow(10,9)) + (diff.tv_usec * pow(10,3))) / osm_iterations;
}
int main(void) {
int x = 2;
int a = someFunction(x,3);
printf("a = %d\n", a);
printf("x = %d\n", x);
int b = someFunction(3,x);
printf("b = %d\n", b);
printf("x = %d\n", x);
return EXIT_SUCCESS;
}
int main(int argc, char *argv[])
{
printf("aGlobalInt before someFunction: %d\n", aGlobalInt);
someFunction();
printf("aGlobalInt after someFunction: %d\n", aGlobalInt);
someFunction();
aGlobalInt = 23;
someFunction();
return 0;
}
int main(void) {
/*
* By value Ð argument VALUES are copied
* into the function parameters
*/
printf("--- By Value ---\n");
int x = 0;
int y = 0;
printf("Before function call: x=%d y=%d\n", x, y);
someFunction(x,y);
printf("After function call: x=%d y=%d\n", x, y);
/*
* By reference Ð argument ADDRESSES are copied
* into the function parameters
*/
printf("\n--- By Reference ---\n");
x = 0;
y = 0;
printf("Before function call: x=%d y=%d\n", x, y);
someOtherFunction(&x,&y);
printf("After function call: x=%d y=%d\n", x, y);
return EXIT_SUCCESS;
}
int main(void) {
int a[SIZE] = { 8,3,1,2,6,0,9,7,4,5 };
printf("Answer is :\n");
someFunction(a, 0, SIZE);
printf("\n");
return 0;
}
/* What does this function do? */
void someFunction( const int b[], int startIndex, int size )
{
if ( startIndex < size ) {
someFunction( b, startIndex + 1, size );
printf( "%d ", b[ startIndex ] );
} /* end if */
} /* end function someFunction */
int main()
{
int length = strlen("hey");
if (someFunction(length) > 1) {
printf("hello\n");
}
return someAFunction(length);
}
/* function main begins program execution */
int main( void )
{
int a[ SIZE ] = { 8, 3, 1, 2, 6, 0, 9, 7, 4, 5 }; /* initialize a */
printf( "Answer is:\n" );
someFunction( a, 0, SIZE );
printf( "\n" );
return 0; /* indicates successful termination */
} /* end main */
int main()
{
String e;
someFunction(e);
}
void constexprTest(){
int arr[someFunction() + 3];
}
int main()
{
someFunction();
return 0;
}