set memory allocation parameters NAME mallopt - set memory allocation parameters LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #in......f ordinary (i.e., non-fastbin) free blocks. smblks The number of fastbin free blocks (see mallopt (3)). hblks The number of blocks currently allocated using mmap (2). (See the d…...f ordinary (i.e., non-fastbin) free blocks. smblks The number of fastbin free blocks (see mallopt (3)). hblks The number of blocks currently allocated using mmap (2). (See the d…...never saved or restored by these functions, with two exceptions: if malloc checking (see mallopt (3)) was in use when malloc_get_state () was called, then malloc_set_state () re…...never saved or restored by these functions, with two exceptions: if malloc checking (see mallopt (3)) was in use when malloc_get_state () was called, then malloc_set_state () re…...ng a program with -lmcheck and using the MALLOC_CHECK_ environment variable (described in mallopt (3)) cause the same kinds of errors to be detected. But, using MALLOC_CHECK_ do…...ng a program with -lmcheck and using the MALLOC_CHECK_ environment variable (described in mallopt (3)) cause the same kinds of errors to be detected. But, using MALLOC_CHECK_ do…...ng a program with -lmcheck and using the MALLOC_CHECK_ environment variable (described in mallopt (3)) cause the same kinds of errors to be detected. But, using MALLOC_CHECK_ do…...ng a program with -lmcheck and using the MALLOC_CHECK_ environment variable (described in mallopt (3)) cause the same kinds of errors to be detected. But, using MALLOC_CHECK_ do…...mous mapping using mmap (2). MMAP_THRESHOLD is 128 kB by default, but is adjustable using mallopt (3). Prior to Linux 4.7 allocations performed using mmap (2) were unaffected by…...mous mapping using mmap (2). MMAP_THRESHOLD is 128 kB by default, but is adjustable using mallopt (3). Prior to Linux 4.7 allocations performed using mmap (2) were unaffected by…...mous mapping using mmap (2). MMAP_THRESHOLD is 128 kB by default, but is adjustable using mallopt (3). Prior to Linux 4.7 allocations performed using mmap (2) were unaffected by…...mous mapping using mmap (2). MMAP_THRESHOLD is 128 kB by default, but is adjustable using mallopt (3). Prior to Linux 4.7 allocations performed using mmap (2) were unaffected by…...mous mapping using mmap (2). MMAP_THRESHOLD is 128 kB by default, but is adjustable using mallopt (3). Prior to Linux 4.7 allocations performed using mmap (2) were unaffected by…...btained using mallinfo (3). SEE ALSO mmap (2), mallinfo (3), malloc (3), malloc_info (3), mallopt (3)...nly freed memory at the top of the heap in the main arena. SEE ALSO sbrk (2), malloc (3), mallopt (3)...fo(0, stdout); exit(EXIT_SUCCESS); } SEE ALSO mallinfo (3), malloc (3), malloc_stats (3), mallopt (3), open_memstream (3)