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 30862-ea47bd413c) Lines: 1139 1487 76.6 %
Date: 2026-05-06 09:26:47 Functions: 132 162 81.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66059814
bl_rotright 61166405
blockbalance 2839352970
blockdelete 1570571831
blockheight 11822000372
blockinsert 1722204748
cgetg_copy_avma 1064212411
cgetlist_avma 620
chk_gc_upto 0
clone_lock 371254307
clone_unlock 311970244
clone_unlock_deep 59318573
clonesearch 742157831
copy_bin 473398475
copy_bin_canon 24
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 14025
err_init_msg 13883
err_recover 13076
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6734
fix_height 3071705279
fix_size 747020
gc_all_unsafe 27390865
gc_dec 6027699104
gc_slice_unsafe 334034783
gc_stack_update 1242667355
gclone 236827733
gclone_refc 0
gcloneref 37888
gcopy 4890686178
gcopy_av0 4041414458
gcopy_av0_canon 84
gcopy_avma 3380315693
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1897
getdebugvar 371173
getheap 84
getstack 7
gettime 3724
getwalltime 0
gp_context_restore 13151
gp_context_save 146345
gsizebyte 175
gsizeclone 236827515
gsizeclone_i 3473433788
gsizeword 2214450
gunclone 387973624
gunclone_deep 3279454040
icopy_avma_canon 12
init_universal_constants 1897
is_in_block 234104200
list_internal_copy 7026
listassign 7026
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 18
newblock 237673361
numerr_name 27109
obj_check 6033804
obj_checkbuild 1507497
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187740
obj_init 2533414
obj_insert 2661637
obj_insert_shallow 173579
obj_reinit 42
os_signal 20807
pari_add_defaults_module 1897
pari_add_module 1887
pari_close 1887
pari_close_blocks 364986
pari_close_export 1887
pari_close_opts 1887
pari_daemon 76
pari_err 56848
pari_err2GEN 56836
pari_err2str 21873
pari_err_display 13097
pari_err_last 87496
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 373064
pari_init_defaults 1897
pari_init_errcatch 373510
pari_init_export 1897
pari_init_functions 1897
pari_init_opts 1897
pari_init_timer 1897
pari_mainstack_alloc 373515
pari_mainstack_free 373505
pari_mainstack_malloc 373515
pari_mainstack_mextend 495301
pari_mainstack_mfree 373505
pari_mainstack_mreset 495301
pari_mainstack_resize 445
pari_mainstack_setsize 495301
pari_mainstack_use 373062
pari_sig_init 3784
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 374957
pari_thread_alloc 371173
pari_thread_close 371433
pari_thread_free 371173
pari_thread_get_global 371173
pari_thread_init 373061
pari_thread_set_global 371154
pari_thread_start 371169
pari_thread_valloc 0
pari_version 7
pari_warn 928
paristack_alloc 1897
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121786
parivstack_resize 0
pop_entree_block 390291
rndus 222161
setalldebug 1925
setdebug 127
setdebugvar 371155
shiftaddress 3103476064
shiftaddress_canon 76
taille0 4041407360
taille0_canon 84
timer 0
timer2 0
timer_aux 222161
timer_delay 111991
timer_get 1903
timer_printf 0
timer_start 358856
timer_vprintf 0
timetoi 0
traverseheap 84
traverseheap_r 13552
type_dim 7308
unexportall 6
vec_gunclone_deep 134771101
walltimer_delay 108267
walltimer_get 0
walltimer_start 253943

Generated by: LCOV version 1.16