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 30712-26d8f09ef9) Lines: 622 695 89.5 %
Date: 2026-02-26 09:24:10 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
fetch_var_value 7
gdivente 7
gdivrounde 7
gmode 7
gshiftle 7
gshiftre 7
pari_var_next 8
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
gpolvar 1183
gshift_right 1392
vars_sort_inplace 1428
pari_var_close 1873
is_ulong 1883
pari_var_init 1883
_given_value 3010
cmp_by_var 5150
pari_fill_hashtable 5639
real_read_more 5676
varentries_set 9378
compile_str 10992
varstate_restore 13130
varentries_unset 16300
gsub1e 20965
ifpari_multi 30723
initep 36272
exponent 75565
real_read 86696
strtor 86696
fetch_var 87455
gmule 178691
pari_set_varstate 371337
var_restore 384458
fetch_user_var 454112
fetch_entry 454210
pari_var_create 484763
varstate_save 517271
is_long 525327
gadde 536517
readseq 804235
readseq_i 804235
dec_read_more 1042076
dec_strtoi_len 1042076
check_proto 2673810
isreturn 2673810
fill_hashtable_single 2698289
insertep 2734443
skipstring 3822251
dec_number_len 4138093
fetch_var_higher 8421742
delete_var 8509255
is_entry 9255355
ifpari 13078467
gsube 15455370
orpari 16723451
do_alias 21963879
fetch_entry_raw 22378765
gadd1e 25685202
skipexponent 31527756
skipconstante 31529498
skipdigits 31535802
int_read 31542896
strtoi 31542896
findentry 31635091
dec_read 31635166
number 31710731
ifpari_void 42384296
andpari 64287524
pari_lex 114152577
ishex 140337838
isbin 140337894

Generated by: LCOV version 1.16