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bc: use smaller datatypes for limits, match GNU bc 'limits' output

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function                                             old     new   delta
bc_vm_process                                        315     291     -24
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(add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-24)             Total: -24 bytes
   text	   data	    bss	    dec	    hex	filename
 988303	    485	   7296	 996084	  f32f4	busybox_old
 988273	    485	   7296	 996054	  f32d6	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-12-02 21:02:54 +01:00
parent 416ce76bcd
commit d9d66556d7
1 changed files with 16 additions and 18 deletions
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34
miscutils/bc.c
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@ -802,14 +802,14 @@ static BcStatus bc_program_reset(BcStatus s);
#define BC_MAX(a, b) ((a) > (b) ? (a) : (b))
#define BC_MIN(a, b) ((a) < (b) ? (a) : (b))
#define BC_MAX_OBASE ((unsigned long) 999)
#define BC_MAX_DIM ((unsigned long) INT_MAX)
#define BC_MAX_SCALE ((unsigned long) UINT_MAX)
#define BC_MAX_STRING ((unsigned long) UINT_MAX - 1)
#define BC_MAX_NAME BC_MAX_STRING
#define BC_MAX_NUM BC_MAX_STRING
#define BC_MAX_EXP ((unsigned long) LONG_MAX)
#define BC_MAX_VARS ((unsigned long) SIZE_MAX - 1)
#define BC_MAX_OBASE ((unsigned) 999)
#define BC_MAX_DIM ((unsigned) INT_MAX)
#define BC_MAX_SCALE ((unsigned) UINT_MAX)
#define BC_MAX_STRING ((unsigned) UINT_MAX - 1)
#define BC_MAX_NAME BC_MAX_STRING
#define BC_MAX_NUM BC_MAX_STRING
#define BC_MAX_EXP ((unsigned long) LONG_MAX)
#define BC_MAX_VARS ((unsigned long) SIZE_MAX - 1)
struct globals {
char sbgn;
@ -6956,16 +6956,14 @@ static BcStatus bc_vm_process(const char *text)
if (s == BC_STATUS_LIMITS) {
bb_putchar('\n');
printf("BC_BASE_MAX = %lu\n", BC_MAX_OBASE);
printf("BC_DIM_MAX = %lu\n", BC_MAX_DIM);
printf("BC_SCALE_MAX = %lu\n", BC_MAX_SCALE);
printf("BC_STRING_MAX = %lu\n", BC_MAX_STRING);
printf("BC_NAME_MAX = %lu\n", BC_MAX_NAME);
printf("BC_NUM_MAX = %lu\n", BC_MAX_NUM);
printf("Max Exponent = %lu\n", BC_MAX_EXP);
printf("Number of Vars = %lu\n", BC_MAX_VARS);
bb_putchar('\n');
printf("BC_BASE_MAX = %u\n", BC_MAX_OBASE);
printf("BC_DIM_MAX = %u\n", BC_MAX_DIM);
printf("BC_SCALE_MAX = %u\n", BC_MAX_SCALE);
printf("BC_STRING_MAX = %u\n", BC_MAX_STRING);
printf("BC_NAME_MAX = %u\n", BC_MAX_NAME);
printf("BC_NUM_MAX = %u\n", BC_MAX_NUM);
printf("MAX Exponent = %lu\n", BC_MAX_EXP);
printf("Number of vars = %lu\n", BC_MAX_VARS);
s = BC_STATUS_SUCCESS;
}