Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - language - anal.c (source / functions) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 89.5 % 695 622 Test Date: 2026-08-10 17:02:30 Functions: 92.1 % 101 93 Legend: Lines:     hit not hit

Function Name	Hit count
IS_ID	457
_given_value	3010
_higher	49
_lower	42
addhelp	42
alias0	28
andpari	64287664
arity0	28
bin_number_len	37
bin_read	28
binary_read	102
check_name	0
check_proto	2721180
cmp_by_var	5199
compile_str	10992
dec_number_len	4140048
dec_read	31643254
dec_read_more	1042580
dec_strtoi_len	1042580
delete_var	8492430
do_alias	21990098
eval_mnemonic	35
exponent	75565
fetch_entry	454263
fetch_entry_raw	22404806
fetch_user_var	454165
fetch_var	67748
fetch_var_higher	8424639
fetch_var_value	7
fill_hashtable_single	2745815
findentry	31645573
gadd1e	25685202
gadde	536517
gdive	56
gdivente	7
gdivrounde	7
gmode	7
gmule	178685
gp_read_str	0
gp_read_str_bitprec	0
gp_read_str_prec	0
gpolvar	4655
gshift_right	1392
gshiftle	7
gshiftre	7
gsub1e	20965
gsube	15455370
hex_number_len	108
hex_read	74
ifpari	13122955
ifpari_multi	30723
ifpari_void	42401699
initep	36800
insertep	2782497
install	0
int_read	31550956
is_entry	9239787
is_long	532471
is_ulong	1895
isbin	140375270
ishex	140375214
isreturn	2721180
kill0	14
killep	14
name_var	0
number	31718819
orpari	16723997
pari_add_function	0
pari_fill_hashtable	5677
pari_is_default	980
pari_isbdigit	1064
pari_lex	114191319
pari_set_varstate	376736
pari_var_close	1887
pari_var_create	485783
pari_var_init	1895
pari_var_next	4
pari_var_next_temp	0
readseq	804235
readseq_i	804235
real_0_digits	203
real_read	86710
real_read_more	5690
skipconstante	31537478
skipdigits	31543796
skipexponent	31535722
skipstring	3822335
strtobin_len	102
strtoi	31550956
strtor	86710
var_register	118
var_restore	389901
varentries_reset	118
varentries_set	9494
varentries_unset	3177
varhigher	105
varlower	34
vars_sort_inplace	1484
vars_to_RgXV	231
varstate_restore	13165
varstate_save	523536

Generated by: LCOV version 2.0-1