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: 1133 1487 76.2 %
Date: 2026-03-10 09:24:00 Functions: 132 162 81.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66613537
bl_rotright 61009924
blockbalance 2849664260
blockdelete 1575331307
blockheight 11864276593
blockinsert 1728625597
cgetg_copy_avma 1059297845
cgetlist_avma 620
chk_gc_upto 0
clone_lock 370739325
clone_unlock 311487615
clone_unlock_deep 59317460
clonesearch 741254739
copy_bin 471177253
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 13857
err_init_msg 13722
err_recover 13062
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3082530780
fix_size 748260
gc_all_unsafe 27370090
gc_dec 5983083254
gc_slice_unsafe 327241933
gc_stack_update 1226212273
gclone 237406736
gclone_refc 0
gcloneref 37888
gcopy 4785470289
gcopy_av0 4024735791
gcopy_av0_canon 32
gcopy_avma 3382988699
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1883
getdebugvar 371807
getheap 84
getstack 7
gettime 3696
getwalltime 0
gp_context_restore 13137
gp_context_save 145800
gsizebyte 175
gsizeclone 237406548
gsizeclone_i 3476192608
gsizeword 2214450
gunclone 388468670
gunclone_deep 3278924195
icopy_avma_canon 12
init_universal_constants 1883
is_in_block 233994384
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 18
newblock 238252474
numerr_name 27109
obj_check 6033193
obj_checkbuild 1506934
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187257
obj_init 2532904
obj_insert 2661153
obj_insert_shallow 173572
obj_reinit 42
os_signal 20653
pari_add_defaults_module 1883
pari_add_module 1873
pari_close 1873
pari_close_blocks 366442
pari_close_export 1873
pari_close_opts 1873
pari_daemon 76
pari_err 56834
pari_err2GEN 56822
pari_err2str 21866
pari_err_display 13083
pari_err_last 87496
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 373602
pari_init_defaults 1883
pari_init_errcatch 374013
pari_init_export 1883
pari_init_functions 1883
pari_init_opts 1883
pari_init_timer 1883
pari_mainstack_alloc 374135
pari_mainstack_free 374125
pari_mainstack_malloc 374135
pari_mainstack_mextend 495537
pari_mainstack_mfree 374125
pari_mainstack_mreset 495537
pari_mainstack_resize 445
pari_mainstack_setsize 495537
pari_mainstack_use 373623
pari_sig_init 3756
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 375453
pari_thread_alloc 371807
pari_thread_close 372500
pari_thread_free 371807
pari_thread_get_global 371807
pari_thread_init 373584
pari_thread_set_global 371643
pari_thread_start 371762
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1883
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121402
parivstack_resize 0
pop_entree_block 390053
rndus 221379
setalldebug 1911
setdebug 127
setdebugvar 371648
shiftaddress 3087723234
shiftaddress_canon 24
taille0 4025253934
taille0_canon 32
timer 0
timer2 0
timer_aux 221379
timer_delay 111593
timer_get 1889
timer_printf 0
timer_start 357811
timer_vprintf 0
timetoi 0
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134575665
walltimer_delay 107897
walltimer_get 0
walltimer_start 253028

Generated by: LCOV version 1.16