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 - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30703-cd958ce78c) Lines: 1139 1487 76.6 %
Date: 2026-02-23 09:22:43 Functions: 134 162 82.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66359567
bl_rotright 60697107
blockbalance 2856933364
blockdelete 1579311405
blockheight 11891687705
blockinsert 1731880550
cgetg_copy_avma 1044943532
cgetlist_avma 620
chk_gc_upto 0
clone_lock 386792737
clone_unlock 327517685
clone_unlock_deep 59317453
clonesearch 773360603
copy_bin 470620862
copy_bin_canon 16
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 13858
err_init_msg 13711
err_recover 13063
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3088956701
fix_size 747528
gc_all_unsafe 27367348
gc_dec 6033470706
gc_slice_unsafe 327253208
gc_stack_update 1238889794
gclone 237256514
gclone_refc 0
gcloneref 37887
gcopy 4794284575
gcopy_av0 3967233240
gcopy_av0_canon 32
gcopy_avma 3343605766
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1919
getdebugvar 371417
getheap 84
getstack 7
gettime 3732
getwalltime 8
gp_context_restore 13138
gp_context_save 145916
gsizebyte 175
gsizeclone 237256325
gsizeclone_i 3436106078
gsizeword 2214450
gunclone 388322196
gunclone_deep 3278927792
icopy_avma_canon 12
init_universal_constants 1907
is_in_block 234015743
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 14
newblock 238100867
numerr_name 27109
obj_check 6033213
obj_checkbuild 1506931
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187257
obj_init 2532868
obj_insert 2661147
obj_insert_shallow 173523
obj_reinit 42
os_signal 20917
pari_add_defaults_module 1907
pari_add_module 1897
pari_close 1897
pari_close_blocks 367460
pari_close_export 1897
pari_close_opts 1897
pari_daemon 76
pari_err 56835
pari_err2GEN 56823
pari_err2str 21855
pari_err_display 13084
pari_err_last 87497
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 373241
pari_init_defaults 1907
pari_init_errcatch 373651
pari_init_export 1907
pari_init_functions 1907
pari_init_opts 1907
pari_init_timer 1907
pari_mainstack_alloc 373769
pari_mainstack_free 373759
pari_mainstack_malloc 373769
pari_mainstack_mextend 495264
pari_mainstack_mfree 373759
pari_mainstack_mreset 495264
pari_mainstack_resize 445
pari_mainstack_setsize 495264
pari_mainstack_use 373265
pari_sig_init 3804
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 375113
pari_thread_alloc 371417
pari_thread_close 372327
pari_thread_free 371417
pari_thread_get_global 371417
pari_thread_init 373216
pari_thread_set_global 371256
pari_thread_start 371377
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1907
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121495
parivstack_resize 0
pop_entree_block 389977
rndus 221643
setalldebug 1935
setdebug 127
setdebugvar 371261
shiftaddress 3064755020
shiftaddress_canon 24
taille0 3967320696
taille0_canon 32
timer 0
timer2 0
timer_aux 221635
timer_delay 111721
timer_get 1925
timer_printf 0
timer_start 358004
timer_vprintf 0
timetoi 8
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134575667
walltimer_delay 107989
walltimer_get 0
walltimer_start 253244

Generated by: LCOV version 1.16