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 31057-89c4d54ba6) Lines: 89.5 % 695 622 Test Date: 2026-07-25 17:02:42 Functions: 92.1 % 101 93 Legend: Lines:     hit not hit

Function Name	Hit count
check_name	0
gp_read_str	0
gp_read_str_bitprec	0
gp_read_str_prec	0
install	0
name_var	0
pari_add_function	0
pari_var_next_temp	0
pari_var_next	4
fetch_var_value	7
gdivente	7
gdivrounde	7
gmode	7
gshiftle	7
gshiftre	7
kill0	14
killep	14
alias0	28
arity0	28
bin_read	28
varlower	34
eval_mnemonic	35
bin_number_len	37
_lower	42
addhelp	42
_higher	49
gdive	56
hex_read	74
binary_read	102
strtobin_len	102
varhigher	105
hex_number_len	108
var_register	118
varentries_reset	118
real_0_digits	203
vars_to_RgXV	231
IS_ID	457
pari_is_default	980
pari_isbdigit	1064
gshift_right	1392
vars_sort_inplace	1484
pari_var_close	1887
is_ulong	1895
pari_var_init	1895
_given_value	3010
varentries_unset	3177
gpolvar	4655
cmp_by_var	5199
pari_fill_hashtable	5677
real_read_more	5690
varentries_set	9494
compile_str	10992
varstate_restore	13165
gsub1e	20965
ifpari_multi	30723
initep	36800
fetch_var	67748
exponent	75565
real_read	86710
strtor	86710
gmule	178685
pari_set_varstate	376653
var_restore	389818
fetch_user_var	454165
fetch_entry	454263
pari_var_create	485783
varstate_save	523432
is_long	532471
gadde	536517
readseq	804235
readseq_i	804235
dec_read_more	1042580
dec_strtoi_len	1042580
check_proto	2721180
isreturn	2721180
fill_hashtable_single	2745815
insertep	2782497
skipstring	3822335
dec_number_len	4140048
fetch_var_higher	8424706
delete_var	8492497
is_entry	9239193
ifpari	13122946
gsube	15455370
orpari	16723997
do_alias	21989979
fetch_entry_raw	22404687
gadd1e	25685202
skipexponent	31535645
skipconstante	31537401
skipdigits	31543719
int_read	31550879
strtoi	31550879
dec_read	31643177
findentry	31644860
number	31718742
ifpari_void	42401688
andpari	64287664
pari_lex	114191039
ishex	140374906
isbin	140374962

Generated by: LCOV version 2.0-1