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 30603-c72b2decfc) Lines: 1144 1487 76.9 %
Date: 2026-01-07 09:21:48 Functions: 135 162 83.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
chk_gc_upto 0
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
gclone_refc 0
gerepile 0
listinit 0
msgtimer 0
name_numerr 0
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_sigint 0
pari_thread_valloc 0
paristack_resize 0
paristack_setsize 0
parivstack_resize 0
timer 0
timer2 0
timer_printf 0
timer_vprintf 0
walltimer_get 0
pari_sighandler 4
exportall 6
unexportall 6
getstack 7
pari_version 7
getwalltime 8
timetoi 8
icopy_avma_canon 12
new_chunk_resize 14
copy_bin_canon 16
export_del 24
shiftaddress_canon 24
gcopy_av0_canon 32
taille0_canon 32
obj_reinit 42
export_add 59
pari_daemon 76
getheap 84
traverseheap 84
setdebug 127
gsizebyte 175
pari_mainstack_resize 445
paristack_newrsize 452
obj_checkbuild_padicprec 539
cgetlist_avma 620
listcopy 730
gcopy_lg 742
pari_warn 774
export_get 1499
pari_add_module 1890
pari_close 1890
pari_close_export 1890
pari_close_opts 1890
init_universal_constants 1900
pari_add_defaults_module 1900
pari_init_defaults 1900
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
paristack_alloc 1900
getabstime 1912
timer_get 1918
setalldebug 1928
gdisplay 3689
gettime 3718
pari_sig_init 3790
f_getheap 6664
list_internal_copy 7019
listassign 7019
type_dim 7308
err_recover 13042
pari_err_display 13063
gp_context_restore 13117
traverseheap_r 13412
err_init_msg 13697
err_init 13837
os_signal 20840
pari_err2str 21841
errname 27109
numerr_name 27109
gcloneref 37888
pari_err2GEN 56795
pari_err 56807
pari_err_last 87483
walltimer_delay 107058
timer_delay 110776
parivstack_reset 120543
gp_context_save 144887
obj_insert_shallow 173523
obj_free 187243
timer_aux 219752
rndus 219760
walltimer_start 251284
pari_close_blocks 345536
pari_thread_set_global 353495
setdebugvar 353497
pari_thread_start 353575
getdebugvar 353587
pari_thread_alloc 353587
pari_thread_free 353587
pari_thread_get_global 353587
pari_thread_close 353738
pari_thread_init 355463
pari_mainstack_use 355466
pari_init_blocks 355468
pari_init_errcatch 355916
pari_mainstack_free 355922
pari_mainstack_mfree 355922
pari_mainstack_alloc 355932
pari_mainstack_malloc 355932
timer_start 356062
pari_stackcheck_init 357365
pop_entree_block 389781
obj_checkbuild_realprec 399100
pari_mainstack_mextend 476475
pari_mainstack_mreset 476475
pari_mainstack_setsize 476475
obj_checkbuild_prec 568477
fix_size 711854
obj_checkbuild 1506930
gsizeword 2214450
obj_init 2532762
obj_insert 2661148
obj_check 6033208
gc_all_unsafe 27365763
clone_unlock_deep 59317446
bl_rotright 60589528
bl_rotleft 66241981
vec_gunclone_deep 134395141
is_in_block 234062985
gsizeclone 237169996
gclone 237170216
newblock 237979710
clone_unlock 327101517
gc_slice_unsafe 327223842
clone_lock 386360034
gunclone 388192205
copy_bin 495900490
clonesearch 772407774
cgetg_copy_avma 1052726197
gc_stack_update 1235883829
blockdelete 1577828559
blockinsert 1730515443
blockbalance 2854282580
fix_height 3085847484
shiftaddress 3119663134
gunclone_deep 3278599206
gcopy_avma 3343192314
gsizeclone_i 3435738851
gcopy_av0 4025205709
taille0 4025441932
gcopy 4792761472
gc_dec 6025774938
blockheight 11880158806

Generated by: LCOV version 1.16