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 30608-ad1edb9ceb) Lines: 1139 1487 76.6 %
Date: 2026-01-13 09:22:00 Functions: 134 162 82.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66242562
bl_rotright 60586544
blockbalance 2854293911
blockdelete 1577831035
blockheight 11880192229
blockinsert 1730518302
cgetg_copy_avma 1052677606
cgetlist_avma 620
chk_gc_upto 0
clone_lock 386374155
clone_unlock 327142158
clone_unlock_deep 59317446
clonesearch 772494413
copy_bin 495903346
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 13837
err_init_msg 13697
err_recover 13042
errname 27109
export_add 59
export_del 24
export_get 1499
exportall 6
f_getheap 6664
fix_height 3085875016
fix_size 711854
gc_all_unsafe 27365593
gc_dec 6025378044
gc_slice_unsafe 327193720
gc_stack_update 1235856437
gclone 237170926
gclone_refc 0
gcloneref 37887
gcopy 4792810604
gcopy_av0 4025324006
gcopy_av0_canon 32
gcopy_avma 3343034205
gcopy_lg 742
gdisplay 3689
gerepile 0
getabstime 1912
getdebugvar 353587
getheap 84
getstack 7
gettime 3718
getwalltime 8
gp_context_restore 13117
gp_context_save 144887
gsizebyte 175
gsizeclone 237170756
gsizeclone_i 3435863770
gsizeword 2214450
gunclone 388195862
gunclone_deep 3278598353
icopy_avma_canon 12
init_universal_constants 1900
is_in_block 233926611
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 14
newblock 237980824
numerr_name 27109
obj_check 6033173
obj_checkbuild 1506921
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187243
obj_init 2532734
obj_insert 2661137
obj_insert_shallow 173523
obj_reinit 42
os_signal 20840
pari_add_defaults_module 1900
pari_add_module 1890
pari_close 1890
pari_close_blocks 347572
pari_close_export 1890
pari_close_opts 1890
pari_daemon 76
pari_err 56807
pari_err2GEN 56795
pari_err2str 21841
pari_err_display 13063
pari_err_last 87482
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 355454
pari_init_defaults 1900
pari_init_errcatch 355886
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
pari_mainstack_alloc 355932
pari_mainstack_free 355922
pari_mainstack_malloc 355932
pari_mainstack_mextend 476475
pari_mainstack_mfree 355922
pari_mainstack_mreset 476475
pari_mainstack_resize 445
pari_mainstack_setsize 476475
pari_mainstack_use 355456
pari_sig_init 3790
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 357339
pari_thread_alloc 353587
pari_thread_close 353953
pari_thread_free 353587
pari_thread_get_global 353587
pari_thread_init 355444
pari_thread_set_global 353486
pari_thread_start 353562
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1900
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 120543
parivstack_resize 0
pop_entree_block 389781
rndus 219760
setalldebug 1928
setdebug 127
setdebugvar 353490
shiftaddress 3119682122
shiftaddress_canon 24
taille0 4025546613
taille0_canon 32
timer 0
timer2 0
timer_aux 219752
timer_delay 110776
timer_get 1918
timer_printf 0
timer_start 356053
timer_vprintf 0
timetoi 8
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134394993
walltimer_delay 107058
walltimer_get 0
walltimer_start 251284

Generated by: LCOV version 1.16