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 30735-65f72320ad) Lines: 1132 1487 76.1 %
Date: 2026-03-15 09:23:45 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 1499
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 13062
pari_err_display 13083
gp_context_restore 13137
traverseheap_r 13412
err_init_msg 13722
err_init 13857
os_signal 20653
pari_err2str 21866
errname 27109
numerr_name 27109
gcloneref 37888
pari_err2GEN 56822
pari_err 56834
pari_err_last 87497
walltimer_delay 107897
timer_delay 111593
parivstack_reset 121402
gp_context_save 145800
obj_insert_shallow 173572
obj_free 187257
rndus 221379
timer_aux 221379
walltimer_start 253028
timer_start 357800
pari_close_blocks 366610
pari_thread_set_global 371592
setdebugvar 371599
pari_thread_start 371755
getdebugvar 371807
pari_thread_alloc 371807
pari_thread_free 371807
pari_thread_get_global 371807
pari_thread_close 372495
pari_thread_init 373574
pari_mainstack_use 373611
pari_init_blocks 373618
pari_init_errcatch 374033
pari_mainstack_free 374125
pari_mainstack_mfree 374125
pari_mainstack_alloc 374135
pari_mainstack_malloc 374135
pari_stackcheck_init 375441
pop_entree_block 390053
obj_checkbuild_realprec 399100
pari_mainstack_mextend 495537
pari_mainstack_mreset 495537
pari_mainstack_setsize 495537
obj_checkbuild_prec 568477
fix_size 748260
obj_checkbuild 1506935
gsizeword 2214450
obj_init 2532905
obj_insert 2661151
obj_check 6033212
gc_all_unsafe 27370641
clone_unlock_deep 59317460
bl_rotright 61000496
bl_rotleft 66609420
vec_gunclone_deep 134575665
is_in_block 234047967
gsizeclone 237405483
gclone 237405762
newblock 238251609
clone_unlock 311357305
gc_slice_unsafe 327245918
clone_lock 370646585
gunclone 388469804
copy_bin 471179379
clonesearch 741009943
cgetg_copy_avma 1059282559
gc_stack_update 1226259832
blockdelete 1575346530
blockinsert 1728622405
blockbalance 2849677111
fix_height 3082510242
shiftaddress 3087933534
gunclone_deep 3278927402
gcopy_avma 3383011372
gsizeclone_i 3476394001
gcopy_av0 4025375454
taille0 4025828734
gcopy 4785493893
gc_dec 5982807353
blockheight 11864208364

Generated by: LCOV version 1.16