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 30703-cd958ce78c) Lines: 637 695 91.7 %
Date: 2026-02-23 09:22:43 Functions: 95 101 94.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
IS_ID 457
_given_value 3010
_higher 49
_lower 42
addhelp 50
alias0 28
andpari 64287528
arity0 28
bin_number_len 37
bin_read 28
binary_read 102
check_name 8
check_proto 2707910
cmp_by_var 5150
compile_str 10992
dec_number_len 4138093
dec_read 31635182
dec_read_more 1042076
dec_strtoi_len 1042076
delete_var 8509303
do_alias 21964445
eval_mnemonic 35
exponent 75565
fetch_entry 454274
fetch_entry_raw 22379363
fetch_user_var 454160
fetch_var 87454
fetch_var_higher 8421798
fetch_var_value 7
fill_hashtable_single 2732681
findentry 31635736
gadd1e 25685202
gadde 536517
gdive 56
gdivente 7
gdivrounde 7
gmode 7
gmule 178691
gp_read_str 0
gp_read_str_bitprec 0
gp_read_str_prec 0
gpolvar 1183
gshift_right 1392
gshiftle 7
gshiftre 7
gsub1e 20965
gsube 15455370
hex_number_len 108
hex_read 74
ifpari 13078464
ifpari_multi 30723
ifpari_void 42384281
initep 36358
insertep 2768921
install 20
int_read 31542912
is_entry 9255393
is_long 532027
is_ulong 1919
isbin 140338484
ishex 140338428
isreturn 2707910
kill0 18
killep 18
name_var 0
number 31710747
orpari 16723451
pari_add_function 0
pari_fill_hashtable 5711
pari_is_default 979
pari_isbdigit 1064
pari_lex 114153623
pari_set_varstate 371246
pari_var_close 1897
pari_var_create 484805
pari_var_init 1907
pari_var_next 8
pari_var_next_temp 0
readseq 804235
readseq_i 804235
real_0_digits 203
real_read 86696
real_read_more 5676
skipconstante 31529514
skipdigits 31535818
skipexponent 31527772
skipstring 3822299
strtobin_len 102
strtoi 31542912
strtor 86696
var_register 118
var_restore 384380
varentries_reset 118
varentries_set 9420
varentries_unset 16308
varhigher 105
varlower 34
vars_sort_inplace 1428
vars_to_RgXV 175
varstate_restore 13138
varstate_save 517333

Generated by: LCOV version 1.16