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bc: remove "error ids": serve no useful purpose, error message should be explanatory enough

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function                                             old     new   delta
bc_warn_fmt                                           17      14      -3
bc_err_fmt                                            15      12      -3
bc_vm_posixError                                     205     189     -16
bc_vm_error                                          156     138     -18
bc_errs                                               28       -     -28
bc_err_ids                                            58       -     -58
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 0/4 up/down: 0/-126)           Total: -126 bytes
   text	   data	    bss	    dec	    hex	filename
 988288	    485	   7296	 996069	  f32e5	busybox_old
 988122	    485	   7296	 995903	  f323f	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-12-03 00:26:12 +01:00
parent 1f67e935ac
commit b8860a8892
1 changed files with 11 additions and 57 deletions
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68
miscutils/bc.c
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@ -242,16 +242,6 @@ typedef enum BcStatus {
} BcStatus;
#define BC_ERR_IDX_VM (0)
#define BC_ERR_IDX_LEX (1)
#define BC_ERR_IDX_PARSE (2)
#define BC_ERR_IDX_MATH (3)
#define BC_ERR_IDX_EXEC (4)
#define BC_ERR_IDX_VEC (5)
#if ENABLE_BC
#define BC_ERR_IDX_POSIX (6)
#endif
#define BC_VEC_INVALID_IDX ((size_t) -1)
#define BC_VEC_START_CAP (1 << 5)
@ -844,49 +834,10 @@ static BcStatus bc_vm_posixError(BcStatus s, const char *file, size_t line,
static void bc_vm_info(void);
static const char bc_err_fmt[] = "\n%s error: %s\n";
static const char bc_warn_fmt[] = "\n%s warning: %s\n";
static const char bc_err_fmt[] = "\nerror: %s\n";
static const char bc_warn_fmt[] = "\nwarning: %s\n";
static const char bc_err_line[] = ":%zu\n\n";
static const char *bc_errs[] = {
"VM",
"Lex",
"Parse",
"Math",
"Runtime",
"Vector",
#if ENABLE_BC
"POSIX",
#endif
};
static const uint8_t bc_err_ids[] = {
BC_ERR_IDX_VM, BC_ERR_IDX_VM, BC_ERR_IDX_VM, BC_ERR_IDX_VM, BC_ERR_IDX_VM,
BC_ERR_IDX_LEX, BC_ERR_IDX_LEX, BC_ERR_IDX_LEX, BC_ERR_IDX_LEX,
#if ENABLE_DC
BC_ERR_IDX_LEX,
#endif
BC_ERR_IDX_PARSE, BC_ERR_IDX_PARSE, BC_ERR_IDX_PARSE, BC_ERR_IDX_PARSE,
BC_ERR_IDX_PARSE, BC_ERR_IDX_PARSE, BC_ERR_IDX_PARSE, BC_ERR_IDX_PARSE,
BC_ERR_IDX_MATH, BC_ERR_IDX_MATH, BC_ERR_IDX_MATH, BC_ERR_IDX_MATH,
BC_ERR_IDX_MATH,
#if ENABLE_DC
BC_ERR_IDX_MATH,
#endif
BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC,
BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC,
BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC,
BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC, BC_ERR_IDX_EXEC,
BC_ERR_IDX_EXEC,
BC_ERR_IDX_VEC, BC_ERR_IDX_VEC,
#if ENABLE_BC
BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX,
BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX,
BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX, BC_ERR_IDX_POSIX,
#endif
BC_ERR_IDX_VM, BC_ERR_IDX_VM, BC_ERR_IDX_VM,
};
static const char *bc_err_msgs[] = {
NULL,
@ -6863,7 +6814,7 @@ static BcStatus bc_vm_error(BcStatus s, const char *file, size_t line)
{
if (!s || s > BC_STATUS_VEC_ITEM_EXISTS) return s;
fprintf(stderr, bc_err_fmt, bc_errs[bc_err_ids[s]], bc_err_msgs[s]);
fprintf(stderr, bc_err_fmt, bc_err_msgs[s]);
fprintf(stderr, " %s", file);
fprintf(stderr, bc_err_line + 4 * !line, line);
@ -6874,17 +6825,20 @@ static BcStatus bc_vm_error(BcStatus s, const char *file, size_t line)
static BcStatus bc_vm_posixError(BcStatus s, const char *file, size_t line,
const char *msg)
{
int p = (int) G_posix, w = (int) G_warn;
const char *const fmt = p ? bc_err_fmt : bc_warn_fmt;
const char *fmt;
if (!(p || w) || s < BC_STATUS_POSIX_NAME_LEN) return BC_STATUS_SUCCESS;
if (!(G.flags & (BC_FLAG_S|BC_FLAG_W))) return BC_STATUS_SUCCESS;
if (s < BC_STATUS_POSIX_NAME_LEN) return BC_STATUS_SUCCESS;
fprintf(stderr, fmt, bc_errs[bc_err_ids[s]], bc_err_msgs[s]);
fmt = G_posix ? bc_err_fmt : bc_warn_fmt;
fprintf(stderr, fmt, bc_err_msgs[s]);
if (msg) fprintf(stderr, " %s\n", msg);
fprintf(stderr, " %s", file);
fprintf(stderr, bc_err_line + 4 * !line, line);
return s * (!G.ttyin && !!p);
if (G.ttyin || !G_posix)
s = BC_STATUS_SUCCESS;
return s;
}
static void bc_vm_envArgs(void)