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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30842-de08e65e1b) Lines: 1881 2002 94.0 % Date: 2026-04-29 09:26:11 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	126
divRq	301
mulqq	1127
addRq	1302
mulRq	2387
divTp	3674
addsub_polmod	7210
ser_normalize	7658
quad_polmod_conj	18669
quad_polmod_norm	18669
div_scal_ser	19096
div_rfrac_scal	32435
div_polmod_same	38150
sqr_ser_part	113907
mul_gen_rfrac	161376
inv_polmod	192400
fix_rfrac	207018
Q_to_Fp	226838
div_rfrac_pol	260657
mul_ser_scal	323974
div_intmod_same	341553
gconj	390611
add_ser_scal	417285
sqr_polmod	426119
div_ser	875766
sub_intmod_same	1017835
div_scal_rfrac	1052294
div_rfrac	1187510
divpT	1204910
div_ser_scal	1543591
gdivgunextu	1583803
Qdivis	1762587
mul_polmod	2674945
divRc	2918883
mulcxmI	2985888
mul_intmod_same	2987694
add_rfrac	3017298
gsubsg	3270046
mul_polmod_scal	3284724
add_intmod_same	3411645
ser_add	4094177
addQp	4763017
mulTp	4985880
mulcxpowIs	5563462
quad_polmod_mul	5861861
pol2ser	6378562
div_T_scal	7295904
mul_self_scal	7663435
mul_rfrac	7910292
_serprec	8187556
mul_polmod_same	8647444
add_rfrac_scal	8823993
rfrac_denom_mul_scal	9852099
mul_rfrac_scal	10435532
mulcIR	11907251
divpp	13212055
gdivgs	13378398
addsub_polmod_scal	13598740
addsub_frac_i	14260412
div_scal_pol	14531955
setfrac	15159034
div_scal_T	15557271
mulcxI	15655093
mulpp	17505495
addsub_pp	19974076
divcR	23431434
mkpadic_mod	24593996
add_scal	29439181
conj_i	31556609
mulrfrac	38069821
ginv	38492784
gred_rfrac2	39476029
addsub_frac	40954838
Leading_is_neg	57629514
gred_rfrac_simple	57633715
gdivgu	61802752
utoi_sign	65169794
Qdivii	143076637
gmul2n	150451145
Qdiviu	151414665
transtype	154223893
mul_scal	198406706
divrunextu	213304248
gmulsg	244342623
gaddsg	270816349
mulcc	281706543
gmulug	283938451
addRc	310789255
mulRc	355221285
gdiv	455356937
gsqr	1343928214
gsub	2905154667
gadd	6257988917
gmul	8961708168

Generated by: LCOV version 1.16