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:

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) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30824-18397de1d0) Lines: 622 695 89.5 %
Date: 2026-04-18 09:26:04 Functions: 93 101 92.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by 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
vars_to_RgXV 175
real_0_digits 203
IS_ID 457
pari_is_default 973
pari_isbdigit 1064
gshift_right 1392
vars_sort_inplace 1428
pari_var_close 1887
is_ulong 1897
pari_var_init 1897
_given_value 3010
gpolvar 4655
cmp_by_var 5150
pari_fill_hashtable 5681
real_read_more 5690
varentries_set 9449
compile_str 10992
varstate_restore 13144
varentries_unset 16321
gsub1e 20965
ifpari_multi 30723
initep 36622
exponent 75565
real_read 86710
strtor 86710
fetch_var 88286
gmule 178691
pari_set_varstate 370008
var_restore 383151
fetch_user_var 454148
fetch_entry 454246
pari_var_create 484835
varstate_save 516266
is_long 531130
gadde 536517
readseq 804235
readseq_i 804235
dec_read_more 1042090
dec_strtoi_len 1042090
check_proto 2712660
isreturn 2712660
fill_hashtable_single 2737321
insertep 2773825
skipstring 3822307
dec_number_len 4138125
fetch_var_higher 8422126
delete_var 8510471
is_entry 9220957
ifpari 13122667
gsube 15455370
orpari 16723829
do_alias 21981195
fetch_entry_raw 22396019
gadd1e 25685202
skipexponent 31532362
skipconstante 31534104
skipdigits 31540422
int_read 31547593
strtoi 31547593
findentry 31617957
dec_read 31639891
number 31715456
ifpari_void 42400578
andpari 64287608
pari_lex 114175268
ishex 140359874
isbin 140359930

Generated by: LCOV version 1.16