[097e2b0] | 1 | extern "C" { |
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| 2 | typedef long unsigned int size_t; |
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| 3 | void *malloc( size_t size ); |
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| 4 | void *calloc( size_t nmemb, size_t size ); |
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| 5 | void *realloc( void *ptr, size_t size ); |
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| 6 | void *memset( void *s, int c, size_t n ); |
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| 7 | void free( void * ptr ); |
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| 8 | int printf( const char *, ... ); |
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| 9 | } |
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| 10 | |
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| 11 | forall( type T ) T * malloc( void ) { |
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| 12 | return (T *)malloc( sizeof(T) ); |
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| 13 | } |
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| 14 | forall( type T ) T * calloc( size_t size ) { |
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| 15 | return (T *)calloc( size, sizeof(T) ); |
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| 16 | } |
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| 17 | forall( type T ) T * realloc( T *ptr, size_t n ) { |
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| 18 | return (T *)(void *)realloc( ptr, sizeof(T) ); |
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| 19 | } |
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| 20 | forall( type T ) T * realloc( T *ptr, size_t n, T c ) { |
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| 21 | return (T *)realloc( ptr, n ); |
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| 22 | } |
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| 23 | |
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| 24 | int *foo( int *p, int c ); |
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| 25 | int *bar( int *p, int c ); |
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| 26 | int *baz( int *p, int c ); |
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| 27 | |
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[784deab] | 28 | int main( void ) { |
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[097e2b0] | 29 | size_t size = 10; |
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| 30 | int * x = malloc(); |
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| 31 | x = malloc(); |
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| 32 | x = calloc( 10 ); // calloc: array set to 0 |
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| 33 | x = realloc( x, 10 ); |
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| 34 | x = realloc( x, 10, '\0' ); |
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| 35 | x = malloc( 5 ); |
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| 36 | float *fp = malloc() + 1; |
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| 37 | |
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| 38 | struct St1 { int x; double y; }; |
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| 39 | struct St1 * st1; |
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| 40 | double *y; |
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| 41 | x = realloc( st1, 10 ); // SHOULD FAIL!! |
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| 42 | #if 0 |
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| 43 | int *p; |
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| 44 | p = foo( bar( baz( malloc(), 0 ), 0 ), 0 ); |
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| 45 | free( p ); |
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| 46 | |
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| 47 | struct St2 { int x; double y; }; |
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| 48 | struct St2 * st2; |
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| 49 | |
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| 50 | y = malloc(); |
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| 51 | st1 = malloc(); |
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| 52 | // st1 = realloc( st2, 10, st1 ); |
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| 53 | |
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| 54 | *y = 1.0; |
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| 55 | printf("%f\n", *y); |
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| 56 | |
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| 57 | st1->x = *x + 1; |
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| 58 | st1->y = *y *1.5; |
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| 59 | printf("{ %d, %f }\n", st1->x, st1->y); |
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| 60 | |
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| 61 | free( y ); |
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| 62 | |
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| 63 | x = malloc( 10 ); |
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| 64 | for ( int i = 0; i < 10; i += 1 ) { |
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| 65 | x[i] = i * 10; |
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| 66 | } |
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| 67 | for ( int j = 0; j < 10; j += 1 ) { |
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| 68 | printf( "x[%d] = %d\n", j, x[j] ); |
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| 69 | } |
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| 70 | free( x ); |
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| 71 | #endif |
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| 72 | } |
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