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 30734-f1f26dedcb) Lines: 1133 1487 76.2 %
Date: 2026-03-06 09:24:29 Functions: 132 162 81.5 %
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
getwalltime 0
listinit 0
msgtimer 0
name_numerr 0
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_sighandler 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
timetoi 0
walltimer_get 0
exportall 6
unexportall 6
getstack 7
pari_version 7
icopy_avma_canon 12
copy_bin_canon 16
new_chunk_resize 18
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 1500
pari_add_module 1873
pari_close 1873
pari_close_export 1873
pari_close_opts 1873
getabstime 1883
init_universal_constants 1883
pari_add_defaults_module 1883
pari_init_defaults 1883
pari_init_export 1883
pari_init_functions 1883
pari_init_opts 1883
pari_init_timer 1883
paristack_alloc 1883
timer_get 1889
setalldebug 1911
gettime 3696
gdisplay 3703
pari_sig_init 3756
f_getheap 6664
list_internal_copy 7019
listassign 7019
type_dim 7308
err_recover 13069
pari_err_display 13090
gp_context_restore 13144
traverseheap_r 13412
err_init_msg 13729
err_init 13864
os_signal 20653
pari_err2str 21873
errname 27109
numerr_name 27109
gcloneref 37887
pari_err2GEN 56829
pari_err 56841
pari_err_last 87496
walltimer_delay 107890
timer_delay 111586
parivstack_reset 121402
gp_context_save 145800
obj_insert_shallow 173572
obj_free 187257
rndus 221365
timer_aux 221365
walltimer_start 253021
timer_start 357692
pari_close_blocks 366839
setdebugvar 371505
pari_thread_set_global 371515
pari_thread_start 371730
getdebugvar 371811
pari_thread_alloc 371811
pari_thread_free 371811
pari_thread_get_global 371811
pari_thread_close 372621
pari_thread_init 373542
pari_init_blocks 373586
pari_mainstack_use 373602
pari_init_errcatch 373994
pari_mainstack_free 374129
pari_mainstack_mfree 374129
pari_mainstack_alloc 374139
pari_mainstack_malloc 374139
pari_stackcheck_init 375413
pop_entree_block 390081
obj_checkbuild_realprec 399100
pari_mainstack_mextend 495541
pari_mainstack_mreset 495541
pari_mainstack_setsize 495541
obj_checkbuild_prec 568477
fix_size 748268
obj_checkbuild 1506870
gsizeword 2214450
obj_init 2532844
obj_insert 2661086
obj_check 6033143
gc_all_unsafe 27354353
clone_unlock_deep 59317460
bl_rotright 61000920
bl_rotleft 66613481
vec_gunclone_deep 134575359
is_in_block 233987853
gclone 237406931
gsizeclone 237406996
newblock 238251666
clone_unlock 311596972
gc_slice_unsafe 327266962
clone_lock 370865638
gunclone 388471322
copy_bin 471114384
clonesearch 741486482
cgetg_copy_avma 1059542713
gc_stack_update 1226316610
blockdelete 1575341032
blockinsert 1728629623
blockbalance 2849719054
fix_height 3082563225
shiftaddress 3087334664
gunclone_deep 3278920643
gcopy_avma 3383667724
gsizeclone_i 3476632395
gcopy_av0 4025080907
taille0 4025221272
gcopy 4785172617
gc_dec 5980694950
blockheight 11864476065

Generated by: LCOV version 1.16